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

You have enemies? Good. That means you've stood up for something, sometime in your life.

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.

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

Try to become not a man of success, but try rather to become a man of value.

The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it.

A leader leads by example not by force.

The secret to creativity is knowing how to hide your sources.

There are many causes I would die for. There is not a single cause I would kill for.

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