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

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

A friend to all is a friend to none

The smaller the mind, the greater the conceit.

I write with experiences in mind, but I don't write about them, I write out of them.

Rest satisfied with doing well, and leave others to talk of you as they please.

It is not the strength, but the duration, of great sentiments that makes great men.

The more that you read, the more things you will know. The more that you learn, the more places you'll go.

An intelligent hell would be better than a stupid paradise.

Don't take tomorrow to bed with you.

In the practice of tolerance, one's enemy is the best teacher.

There is no question climate change is happening. The only arguable point is what part humans are playing in it.

Wonder is the beginning of wisdom.

Your inner world has its own taste, has its own fragrance, has its own light. And it is utterly silent.

Desire is the very essence of man.

I mistrust the judgement of every man in a case in which his own wishes are concerned.

Experience is merely the name men gave to their mistakes.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

There are four ways, and only four ways, in which we have contact with the world. We are evaluated and classified by these four contacts: what we do, how we look, what we say, and how we say it.

I think, therefore I am.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact