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.

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.

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.

Success is going from failure to failure without a loss of enthusiasm.

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.

Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.

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.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

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

An eye for an eye will make the whole world blind.