The age-old and noble thought of 'I will lay down my life to save another,' is nothing more than cowardice.

The love for all living creatures is the most noble attribute of man.

A man who dares to waste one hour of time has not discovered the value of life.

The world will not be inherited by the strongest, it will be inherited by those most able to change.

Nothing exists for itself alone, but only in relation to other forms of life

Building a better mousetrap merely results in smarter mice.

A mathematician is a blind man in a dark room looking for a black cat which isn't there.

An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men.

It is not the biggest, the brightest or the best that will survive, but those who adapt the quickest.

We can allow satellites, planets, suns, universe, nay whole systems of universes, to be governed by laws, but the smallest insect, we wish to be created at once by special act.

What a book a devil's chaplain might write on the clumsy, wasteful, blundering, low, and horribly cruel work of nature!

I lean back on the pillows and look at the corners of the room. When I was a kid, I always wanted to live on the ceiling - it looked so clean and uncluttered, like the top of a cake.

Do not make the Great Commission your Great Omission.

The definition of flexibility is being constantly open to the fact that you might be on the wrong track.

I don't know what fire is made of - hell nobody does. All I know is that fire is awesome. I'm not a pyromaniac, but I am a pyroenthusiast.

In Ireland, there are the same fossils, the same shells and the same sea bodies, as appear in America, and some of them are found in no other part of Europe.

I want to see this country prosperous. I want to see people get a job. I want to see people get enough to eat. We have never made good on our promises.

We dare not forget that we are the heirs of that first revolution.

Thinking is the most unhealthy thing in the world, and people die of it just as they die of any other disease. Fortunately, in England at any rate, thought is not catching.

The history of Wall Street is inseparable from New York.

In a way, art has always been my way of problem-solving, of getting through situations, of finding my response to things, so to imagine doing something else makes me panic a little bit.