The school as a means of education to me was simply a blank.

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!

A bird must rely on its own wings if it is to conquer the sky.

Be happy with what you have.

When coming back, we may notice we have changed because others haven’t.

You can't ever get too much of Paris.

The true measure of the value of any business leader and manager is performance.

The difference between an adventure and an ordeal is attitude.

Moral principles do not depend on a majority vote. Wrong is wrong, even if everybody is wrong. Right is right, even if nobody is right.

Rise early, that by habit it may become familiar, agreeable, healthy, and profitable.

A caring heart that listens is often more valued than an intelligent mind that talks.

When a man meets his make, society begins.