Infinite striving to be the best is man's duty; It is its own reward. Everything else is in god's hands. It's not that I'm so smart, it's just that I stay with problems longer.

The concept of marriage must have been thought up by an unimaginative pig.

Truth is what stands the test of experience.

A man's value to the community primarily depends on how far his feelings, thoughts, and actions are directed towards promoting the good of his fellows.

Make everything as simple as possible, but not simpler.

Betterment of conditions the world over is not essentially dependent on scientific knowledge but on the fulfillment of human traditions and ideals.

Learn from yesterday, live for today.