Coincidence is God’s way of remaining anonymous.

Everyone should be respected as an individual, but no one idolized.

Blind belief in authority is the greatest enemy of truth.

Great spirits have always found violent opposition from mediocre minds. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence.

I cannot imagine a God who rewards and punishes the objects of his creation, whose purposes are modeled after our own – a God, in short, who is but a reflection of human frailty. Neither can I believe that the individual survives the death of his body, although feeble souls harbor such thoughts through fear or ridiculous egotisms.

I have no special talent. I am only passionately curious.

I’d rather be an optimist and a fool than a pessimist and right.

If I had an hour to solve a problem I’d spend 55 minutes thinking about the problem and 5 minutes thinking about solutions.