I think, therefore I am.

Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.

He who can destroy a thing, can control a thing.

Promises are like crying babies in a theater, they should be carried out at once.

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

He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.

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

I know I am but mortal and so therewhilst prepare myself for death, whensoever it shall please God to send it.

Where there is anger, there is always pain underneath.

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

All great achievements require time.

Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.

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

What a man does for others, not what they do for him, gives him immortality.

Realize deeply that the present moment is all you ever have.

Better mad with the rest of the world than wise alone.

Nobody made a greater mistake than he who did nothing because he could do only a little.

To me, being an intellectual doesn't mean knowing about intellectual issues; it means taking pleasure in them.

None but ourselves can free our minds.

Language is very powerful. Language does not just describe reality. Language creates the reality it describes.

If you buy what you do not need, you will need what you cannot buy.