A clever person solves a problem. A wise person avoids it.

I like your Christ. I do not like your Christians. Your Christians are so unlike your Christ.

Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's relativity.

Speak only if it improves upon the silence.

If you are going through hell, keep going.

Live as if you were to die tomorrow. Learn as if you were to live forever.

Life is like riding a bicycle. To keep your balance you must keep moving.

You should be the change that you want to see in the world.

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

Science without religion is lame, religion without science is blind.

History does not repeat itself, but it rhymes.

Mistakes are always forgivable, if one has the courage to admit them.

Seven social sins: politics without principles, wealth without work, pleasure without conscience, knowledge without character, commerce without morality, science without humanity, and worship without sacrifice.

Find purpose, the means will follow.

I like pigs. Dogs look up to us. Cats look down on us. Pigs treat us as equals.