Jealousy is the tribute mediocrity pays to genius.

The most courageous act is still to think for yourself. Aloud.

Fear doesn't exist anywhere except in the mind.

Never argue with an idiot. They drag you down to their level and then beat you with experience.

Beer: The cause of, and solution to, all of life's problems.

It is not enough to have a good mind; the main thing is to use it well.

Thoughts without content are empty, intuitions without concepts are blind.

Those who see the invisible can do the impossible.

There is geometry in the humming of the strings. There is music in the spacing of the spheres.

Great dreams of great dreamers are always transcended.

Throw your heart over the fence and the rest will follow.

The oldest, shortest words- 'yes' and 'no'- are those which require the most thought.

The trouble with most of us is that we would rather be ruined by praise than saved by criticism.

What lies behind us and what lies ahead of us are tiny matters compared to what lives within us.

The first thing you'll have to do, is the last thing you wished.

Learned we may be with another man's learning: we can only be wise with wisdom of our own.

The more skilled you are at something, the worse you are at it when showing someone.

I believe that one defines oneself by reinvention. To not be like your parents. To not be like your friends. To be yourself. To cut yourself out of stone.

All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.

Every act of creation is first an act of destruction.

The greatest power we have is the power of choice.