Religion is fundamentally opposed to everything I hold in veneration - courage, clear thinking, honesty, fairness, and above all, love of the truth

Evangelical Christianity, as everyone knows, is founded upon hate, as the Christianity of Christ was founded upon love

Most people are unable to write because they are unable to think, and they are unable to think because they congenitally lack the equipment to do so, just as they congenitally lack the equipment to fly over the moon.

The effort to reconcile science and religion is almost always made, not by theologians, but by scientists…the theologians...are smart enough to see that the two things are implacably and eternally antagonistic.

I believe that religion, generally speaking, has been a curse to mankind - that its modest and greatly overestimated services on the ethical side have been more than overcome by the damage it has done to clear and honest thinking

A Sunday school is a prison in which children do penance for the evil conscience of their parents.