If one believes in a god, one is a Theist. If one does not believe in a god, then one is an A-theist — he is without that belief. The distinction between atheism and theism is entirely, exclusively, that of whether one has or has not a belief in God.

I do not believe in God. It seems to me that theists of all kinds have very largely failed to make their concept of a deity intelligible; and to the extent that they have made it intelligible, they have given us no reason to think that anything answers to it.

I don't profess any religion; I don't think it’s possible that there is a God; I have the greatest difficulty in understanding what is meant by the words ‘spiritual’ or ‘spirituality.'[Interview, The New Yorker, Dec. 26, 2005]

I think there is a puritanical wind that is blowing. I have never seen such a lack of separation between church and state in America, I don’t believe in God, but if I did I would say that sex is a Godgiven right. Otherwise it’s the end of our species.

Well it's fairly straightforward: there isn't one [a god]. And there's no evidence for one, no reason to believe that there is one, and so I don't believe that there is one. And I think that it is rather foolish that people do think that there is one.

Atheism may be defined as the mental attitude which unreservedly accepts the supremacy of reason and aims at establishing a lifestyle and ethical outlook verifiable by experience and the scientific method, independent of all arbitrary assumptions of authority and creeds.

Muhammad introduced the concept of such Glorious and Omnipotent God in Whose eyes all worldly systems are pieces of straw. Islamic equality of mankind is no fiction as it is in Christianity. No human mind has ever thought of such total freedom as established by Muhammad.

Regardless of your religious beliefs, you should never tell a mourning mother that it was "God's plan." For some people, that can be worse than saying nothing at all. For a non-believer, the words that are meant to console a religious person can do quite the opposite.

I find it far more awesome, wonderful, that creation; our appearance in the world; should be the culmination, or at least one of the latest products of 3,000 Million years of organic evolution, than a kind of country trick, taking a rib out of a man's side in a trance.

When a mere girl, my mother offered me a dollar if I would read the Bible through; . . . . despairing of reconciling many of its absurd statements with even my childish philosophy, . . . I became a sceptic, doubter, and unbeliever, long ere the 'Good Book' was ended.

Sydney did not believe in life after death, but in her experience, admitting this could lead to long and complicated discussions in which people seemed to think that since she did not believe in God or the afterlife, there was nothing to stop her from becoming an ax murderer.

Atheistic existentialism, of which I am a representative, declares with greater consistency that if God does not exist there is at least one being whose existence comes before its essence, a being which exists before it can be defined by any conception of it. That being is man....

I am an atheist and I consider religions to be a form of collective neurosis. I am not an enemy of the Catholics, as I am not an enemy of the tuberculars, the myopic or the paralytics; you cannot be an enemy of the sick, only their good friend in order to help them cure themselves.

I simply would not accede to being forced into this, and would frequently be kept out of classes because of irreverent comments and mocking this religious stuff. Frankly, it stayed with me to this day. In fact, don't get me going. I'm almost as bad as Richard Dawkins on this issue.

We are all born free from all religious affiliations and only come to believe in such things after being introduced to it ― so, atheism is the default position. Although some children are not indoctrinated with a specific religion before the age of reason, there are many more who are.