I think, therefore I am.

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

Honesty is the first chapter in the book of wisdom.

Moderation in temper is always a virtue; but moderation in principle is always a vice.

Rational discussion is useful only when there is a significant base of shared assumptions.

Man is the only creature who refuses to be what he is.

The greatest deception men suffer is from their own opinions.

Compassion is the basis of morality.

It takes a great man to be a good listener.

We are all born ignorant, but one must work hard to remain stupid

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

You are the bows from which your children as living arrows are sent forth.

He that cannot reason is a fool. He that will not is a bigot. He that dare not is a slave.

Proverbs are short sentences drawn from long experience.

Those who know, do. Those that understand, teach.

Admiration is the daughter of ignorance.

The road of excess leads to the palace of wisdom.

We choose our joys and sorrows long before we experience them.

Achievement brings its own anticlimax.

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

Knowledge speaks, but wisdom listens