Sympathy for the lowest animals is one of the noblest virtues with which man is endowed.

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!

Memory is imagination in reverse.

. . . Kings, aristocrats, tyrants, whoever they be, are slaves rebelling against the sovereign of the earth, which is the human race, and against the legislator of the universe, which is n

Every culture loves scatological humour. That's always a favourite.

The underlying sense of form in my work has been the system of the Universe, or part thereof. For that is a rather large model to work from.

Adolescence is usually typified by an unanswerable combination of innocence and insolence.

Everybody grows up with comedy. I mean, Egyptian comedy has a very, very old tradition. Our theater and our movies are just, like, amazing.

We must make progress slowly so as to preserve the progress we have already made.

My experience teaches me that truth can never be propagated by doing violence.

I think you need to be a little in love—not necessarily in a romantic sense, although that helps—but to be in love with the reality of your own life.

It is hard to deal with someone who smiles and pretends to like you to your face and sticks that eight inch blade in your back when you turn around.