The hardest thing in the world to understand is the income tax.

This is a question too difficult for a mathematician. It should be asked of a philosopher"(when asked about completing his income tax form)

I feel that you are justified in looking into the future with true assurance, because you have a mode of living in which we find the joy of life and the joy of work harmoniously combined. Added to this is the spirit of ambition which pervades your v

Not until the creation and maintenance of decent conditions of life for all people are recognized and accepted as a common obligation of all people and all countries - not until then shall we, with a certain degree of justification, be able to speak of humankind as civilized.

I cannot imagine a God who rewards and punishes the objects of his creation and is but a reflection of human frailty.

Computers are incredibly fast, accurate and stupid. Human beings are incredibly slow, inaccurate and brilliant. Together they are powerful beyond imagination.