A pure atheist is impossible to find. An atheist is one who does not believe in anything that is not concrete and tangible. Life is not all concrete and tangible. Nor is this Universe. Whether it is business, science or art, they all involve a certain amount of guesswork, assumptions, imagination and intuition. All of them are ethereal in nature and are not tangible. The moment an atheist accepts, even remotely a field that is unexplainable, he ceases to be an atheist. Any intelligent person cannot rule out the mystery in life and the universe and hence cannot honestly be an atheist! The so-called atheists are perhaps only denouncing certain concepts of God.
Question: Was Buddha an atheist?
Sri Sri: "No" in one sense because he professed emptiness which is very hard for an atheist to accept and "Yes" in another sense because he did not profess concepts of God.
Jim: An atheist believes only what he can see but Buddha said all that you see is not real.
Sri Sri: If only all present day atheists could be Buddhas.