Today, on two of the Buddhist discussion forums that I regularly frequent,
someone asked about some of the seeming contradictions between Buddhism and the theory of evolution, and I thought it'd be worth reproducing my answers here.
The first question was whether Buddhism and/or Buddhists deny evolution. I answered that, although it's possible there are some who do, as far as I'm aware the answer is no to both.
For example, while I see Buddhism as dealing exclusively with mental stress and its cessation (i.e., psychology), and not biology, physics, etc., the Buddha does tell a story about the beginning of life on this world to two brahmins which, in the end, was used to illustrate how the way to liberation is beyond caste and lineage (
DN 27). So, in this regard, the Buddha does give what can be interpreted as a rough theory of evolution to the pair of brahmins in that the physical characteristics of the mythological beings in question change due to environmental changes and interactions.
I think that, when taken literally, the creation myth in DN 27 can be seen as an attempt to give a naturalistic explanation of the origins of life and the universe, and Darwin's fairly well-proven theory of evolution certainly isn't inconsistent with this. That being said, I agree with Prof. Gombrich that, taking the context of DN 27 into account, this sutta is a lively and ingenious parody that's actually meant to make fun of the very need for a cosmology as a foundation for religious development (
How Buddhism Began: The Conditioned Genesis of the Early Teachings, pg. 81-82). Either way, Buddhism and the theory of evolution aren't mutually exclusive, and there's nothing in the former that contradicts the latter.
Another question was whether the Buddhist concept of rebirth denies evolution when it says that "evolution or life-cycles follow kamma rather than genes." To this I also answered no, since even if you take the teachings on rebirth literally, they don't say that evolution follows
kamma.
In the Suttas, the Buddha defines kamma as intentional actions of body, speech and mind (
AN 6.63) that have the potential to produce certain results, which, in turn, have the potential to produce pleasant, painful or neutral feelings (
vedana) in the mind (
AN 4.235). The word itself simply means 'action.' The basic premise behind kamma is that there's a cause and effect relationship between our actions and how they're experienced, and the teachings themselves deal specifically with the intentional action of individuals and how the results of those actions are then experienced by said individuals.
Intention (
cetana) is a product of the aggregate of mental formations (
sankharakhandha). The cause by which kamma comes into play is sensory contact (
phassa). Furthermore, according to Nyanatiloka's
Manual of Buddhist Terms and Doctrines,
vipaka, 'fruit' or 'result,' is limited to "any ... mental phenomenon (e.g. bodily agreeable or painful feeling, sense-consciousness, etc.), which is the result of wholesome or unwholesome volitional action (karma, q.v.) through body, speech or mind, done either in this or some previous life."
In other words, kamma is primarily psychological in nature and has nothing to do with the physical evolution of species over time. In fact, later commentaries, stressing the fact that not everything we experience in life is caused by kamma, lists five distinct causal laws or processes (
panca-niyamas) that operate in the physical and mental worlds: seasonal laws (
utu-niyama), biological laws (
bija-niyama), psychological laws (
citta-niyama), kammic laws (
kamma-niyama) and natural laws (
dhamma-niyama). If anything, I'd say that evolution would fall under the category of biological laws, and that both kamma and evolution can be seen as two distinct processes working in tandem when it comes to a sentient being's experience of the present moment.
It was then asked if Buddhism denies that there are 'mental dispositions' in genes. I answered that I don't think so; but I also don't think it promotes this idea, either.
Nothing was known about genes in the Buddha's time, so it's no surprise that this question isn't explicitly addressed. But what I do know is that the Buddha didn't seem to reject that specific mental events are contingent upon corresponding physical events in the brain, which is the prevailing view of modern science, but he didn't explicitly promote it, either. In
The Buddha and His Teachings, for example, Narada Thera notes that:
In the Patthana, the Book of Relations, the Buddha refers to the seat of consciousness, in such indirect terms as 'yam rupam nissaya—depending on that material thing', without positively asserting whether that rupa was either the heart (hadaya) or the brain. But, according to the view of commentators like Venerable Buddhaghosa and Anuruddha, the seat of consciousness is definitely the heart. It should be understood that the Buddha neither accepted nor rejected the popular cardiac theory.
So even though the Buddha detailed the mutual dependency of mental and physical activity and consciousness (
DN 15), he wasn't a strict materialist. In regard to name-and-form (
nama-rupa), for example, he didn't see consciousness as merely the byproduct of matter; he saw mentality and materiality as mutually sustaining immaterial and material phenomena, using the analogy of two sheaves of reeds leaning against one another to illustrate their relationship (
SN 12.67). The extent of this connection, however, is debatable.
Nevertheless, I think questions like these, as well as any about evolution itself, lie outside the scope of Buddhism proper, which deals exclusively with one subject, the subjective experience of human mental suffering. The Buddha himself
made it clear that:
Both formerly and now, monks, I declare only stress and the cessation of stress.
In essence, Buddhism doesn't seek to explore or explain the objective world, which is the realm of science, but to explore and the inner world of the mind, the microcosm, in order to achieve an inner peace and happiness.
The Buddha approached the problem of mental stress and suffering like a doctor, formulating the four noble truths in the same way that ancient Indian physicians formulated medical diagnoses, i.e., disease (
stress), cause (
craving), prognosis (a
cure/cessation of craving is possible) and treatment (the
noble eightfold path). And while it may sound overly simplistic, the basic premise of the path can be summed up by
this short passage from the
Dhammapada:
The non-doing of any evil, the performance of what's skillful, the cleansing of one's own mind: this is the teaching of the Awakened.
The Buddha's teachings are nothing if not pragmatic in nature. I think this is made especially clear in
MN 22, where the Buddha likens his teachings to a raft:
"Monks, I will teach you the Dhamma compared to a raft, for the purpose of crossing over, not for the purpose of holding onto. Listen & pay close attention. I will speak."
"As you say, lord," the monks responded to the Blessed One.
The Blessed One said: "Suppose a man were traveling along a path. He would see a great expanse of water, with the near shore dubious & risky, the further shore secure & free from risk, but with neither a ferryboat nor a bridge going from this shore to the other. The thought would occur to him, 'Here is this great expanse of water, with the near shore dubious & risky, the further shore secure & free from risk, but with neither a ferryboat nor a bridge going from this shore to the other. What if I were to gather grass, twigs, branches, & leaves and, having bound them together to make a raft, were to cross over to safety on the other shore in dependence on the raft, making an effort with my hands & feet?' Then the man, having gathered grass, twigs, branches, & leaves, having bound them together to make a raft, would cross over to safety on the other shore in dependence on the raft, making an effort with his hands & feet. Having crossed over to the further shore, he might think, 'How useful this raft has been to me! For it was in dependence on this raft that, making an effort with my hands & feet, I have crossed over to safety on the further shore. Why don't I, having hoisted it on my head or carrying on my back, go wherever I like?' What do you think, monks: Would the man, in doing that, be doing what should be done with the raft?"
"No, lord."
"And what should the man do in order to be doing what should be done with the raft? There is the case where the man, having crossed over, would think, 'How useful this raft has been to me! For it was in dependence on this raft that, making an effort with my hands & feet, I have crossed over to safety on the further shore. Why don't I, having dragged it on dry land or sinking it in the water, go wherever I like?' In doing this, he would be doing what should be done with the raft. In the same way, monks, I have taught the Dhamma compared to a raft, for the purpose of crossing over, not for the purpose of holding onto. Understanding the Dhamma as taught compared to a raft, you should let go even of Dhammas, to say nothing of non-Dhammas."
The final question dealt with rebirth and whether Buddhists believe that characteristics like beauty, intelligence, health and longevity, etc. come from past life kamma and not from genes; and if not, how this apparent relationship between past life kamma and genetics is reconciled.
I suppose that some might seeing as how
there are suttas which seem to suggest that one will enjoy things like beauty, intelligence, health and longevity, etc. in a future lifetime due to actions done in this life, but there's debate as to what they mean. Some, for example, suggest that these mundane teachings on morality (those dealing with what's regarded as 'me' and 'mine') were given to people who (1) already believed in rebirth and (2) weren't spiritually ready for more advanced, supramundane teachings (those dealing with emptiness and not-self) (e.g.,
MN 117,
MN 143, etc.).
Others, however, take these literally, and suggest that our actions in this life can affect our experiences in the next. But even then, the basic idea is that skillful actions lead to pleasant results/feelings, and unskillful actions lead to unpleasant results/painful feelings, not that actions in and of themselves are responsible for things like changes in inherited traits. It's quite possible, for example, that evolution takes place, and species physical change over time, while another process is at work in the mental realm, influencing the growth and development of consciousness.
Now,
this may be misconstrued as suggesting that psychology and genetics are completely unrelated, but that's not what I'm saying, nor what I believe. Of course our genetic makeup influences our psychology and behaviour to a certain extent (as will external factors such as upbringing), but that doesn't mean our psychology and behaviour is responsible for the evolutionary changes in inherited traits of species over time. In this way, genetics can affect kamma, but not vice versa, as in I do x and y trait will develop as a direct result.
It may
also be asked whether the various nimayas imply a type of ontology, which is an interesting question in that the Buddha's teachings generally seem to avoid such metaphysics in favour of a pragmatic approach to suffering and its causes (e.g., see
MN 63). I don't think it necessarily does, but if so, I'd say it's closer to something like process philosophy, where the focus is on processes or becoming rather than unchanging being or essence, e.g., Heraclitus vs. Plato;
anicca + anatta vs.
atman; or anything else that looks at change vs. essence.
If something is impermanent, it means that it's subject to change, whereas that which has a permanent being or essence isn't. In other words, becoming (or any process of change) is only possible within the context of impermanence. In the examples I gave above, the former are examples of things dealing with processes or becoming, while the latter are things dealing with unchanging being or essence. For example, Heraclitus, if we're to believe Plato, is famous for his idea that "everything flows," whereas Plato is famous for his idea of eternal forms. In the second example, the Buddha taught that what we mistakenly cling to as 'self' is really only impermanent phenomena subject to arising, changing and passing away, whereas the Vedas and Upanishads taught that our self is something real and eternal, something that
is.
Strict ontology deals more with what
is (i.e., being or essence), whereas the basic idea behind
process philosophy is that what 'exists' is best understood in terms of processes rather than things or substances, and that change — whether physical, organic or psychological — "is the pervasive and predominant feature of the real." As such, it's sometimes called 'ontology of becoming.'
Of course, in Buddhism, becoming (
bhava) refers more to the sense of identity that arises when there's clinging to one or more of the
aggregates, but the basic idea is that our sense of self is a process of 'I-making' and 'my-making,' which I think can be classified as a type of process philosophy. And the reason I mention this is because I think that the niyamas are simply an extension of this idea, only applied by later commentators to external phenomena like the growth cycles of plants, weather, etc. in an effort to stress that not everything we experience in life is caused by kamma.
And I think all of this is worth pointing out in order to illustrate that the theory of evolution is entirely compatible with Buddhism—that Buddhism acknowledges change, and doesn't hold the belief (as some mistakenly assume) that everything, including the changes in inherited traits of species through successive generations, is caused by kamma.
(For further reference, more of my thoughts on the Buddhist concept of rebirth can be found
here, and some of my rambling thoughts on consciousness can be found
here.)