The mind that finds its way to wild places is the poet's; but the mind that never finds its way back is the lunatic's.

I find it rather easy to portray a businessman. Being bland, rather cruel and incompetent comes naturally to me.

Animals, whom we have made our slaves, we do not like to consider our equal.

If you could kick the person in the pants responsible for most of your trouble, you wouldn't sit for a month.

Enthusiasm... the sustaining power of all great action.

The spirit of man is an inward flame; a lamp the world blows upon but never puts out.

It does not do to dwell on dreams and forget to live.

All men are liable to error; and most men are, in many points, by passion or interest, under temptation to it.

I do not argue with obstinate men. I act in spite of them.

I think we're having fun. I think our customers really like our products. And we're always trying to do better.

A good goal is like a strenuous exercise - it makes you stretch.

The people I distrust most are those who want to improve our lives but have only one course of action.

If the only prayer you said was thank you, that would be enough.

Human decency is not derived from religion. It precedes it.

We must not always talk in the market-place of what happens to us in the forest.

He who surpasses or subdues mankind must look down on the hate of those below.

A scientist in his laboratory is not a mere technician: he is also a child confronting natural phenomena that impress him as though they were fairy tales.?

You just have to keep on doing what you do. It's the lesson I get from my husband; he just says, Keep going. Start by starting.

Certainty? In this world nothing is certain but death and taxes.

Effective action is always unjust.

I've always had an obligation to creation, above all.