What the learned world tends to offer is one second-hand scrap of information illustrating ideas derived from another second-hand scrap of information. The second-handedness of the learned world is the secret of its mediocrity.

I consider Christianity to be one of the great disasters of the human race... It would be impossible to imagine anything more un - Christianlike than theology.

The worship of God is not a rule of safety - it is an adventure of the spirit, a flight after the unattainable.

The worst that happened to men of science was that Galileo suffered an honorable detention and a mild reproof, before dying peacefully in his bed.

From the very beginning of his education, the child should experience the joy of discovery.

Science repudiates philosophy. In other words, it has never cared to justify its truth or explain its meaning.

Every epoch has its character determined by the way its population reacts to the material events which they encounter.