Love and knowledge, so far as they were possible, led upward toward the heavens. But always pity brought me back to earth. Echoes of cries of pain reverberate in my heart. Children in famine, victims tortured by oppressors, helpless old people a burden to their sons, and the whole world of loneliness, poverty, and pain make a mockery of what human life should be. I long to alleviate this evil, but I cannot, and I too suffer.

What science cannot discover, mankind cannot know.

Education ought to foster the wish for truth, not the conviction that some particular creed is the truth.

Even in the most purely logical realms, it is insight that first arrives at what is new.

To conquer fear is the beginning of wisdom.

For over two thousand years it has been the custom among earnest moralists to decry happiness as something degraded and unworthy

To expect a personality to survive the disintegration of the brain is like expecting a cricket club to survive when all of its members are dead.