Nothing can be more improving to a young naturalist, than a journey in a distant country.

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!

The maturity of man—that means, to have reacquired the seriousness that one had as a child at play

I think you are wrong to want a heart. It makes most people unhappy. If you only knew it, you are in luck not to have a heart.

But I will finally be with Jesus. That is my one consolation, and it is enough to make death almost no worry at all.

She wasn’t religious. She didn’t believe in heaven or hell, only in ghosts, Ouija boards, tables which rapped and little inept voices speaking plaintively of flowers

And the poem, I think, is only your voice speaking.

Sadoway does more than entertain; he gives you a glimpse into the future of energy.

The wise are above books.

That's all you have to ask from yourself writing a book. That it's the best you can do and that you did it without any ego involved and that you did it for somebody else. That's the best you can do.

A Covenant not to defend my selfe from force, by force, is always voyd.

It's an Afghanistan goat, so it can't stay here, or else it'll choke on the sweet air of freedom.