When I stand before God at the end of my life, I would hope that I would not have a single bit of talent left, and could say, 'I used everything you gave me'.

If you have no problems, then you have no clue to what is going.

Time flies over us, but leaves its shadow behind.

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

He who conquers others is strong; he who conquers himself is mighty.

Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.

There is nothing more uncommon than common sense.

Having a great intellect is no path to being happy.

Nothing fixes a thing so intensely in the memory as the wish to forget it.

Honesty is the first chapter in the book of wisdom.

Sometimes you will never know the value of a moment until it becomes a memory.

Don't raise your voice, improve your argument.

At the center of your being you have the answer; you know who you are and you know what you want.

Intellectuals solve problems, geniuses prevent them.

It takes a great deal of bravery to stand up to our enemies, but just as much to stand up to our friends.

I have no desire to make windows into mens souls

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

What's done can't be undone.

If you only read the books that everyone else is reading, you can only think what everyone else is thinking.

Every act of creation is first an act of destruction.

Doubt is the origin of wisdom