“Genius is that which forces the inertia of humanity to learn.”

The motive power of democracy is love.

It is emotion that drives the intelligence forward in spite of obstacles.

The movement of the stream is distinct from the river bed, although it must adopt its winding course.

Intuition is a method of feeling one’s way intellectually into the inner heart of a thing to locate what is unique and inexpressible in it.

Sex-appeal is the keynote of our whole civilization.

In short, intelligence, considered in what seems to be its original feature, is the faculty of manufacturing artificial objects, especially tools to make tools, and of indefinitely urging the manufacture.

You will obtain a vision of matter that is perhaps fatiguing for your imagination, but pure and stripped of what the requirements of life make you add to it in external perception.

Europe is overpopulated, the world will soon be in the same condition, and if the self-reproduction of man is not rationalized… we shall have war.

There is no greater joy than that of feeling oneself a creator. The triumph of life is expressed by creation.

To ease another’s burden, help to carry it.

Laughter appears to stand in need of an echo, Listen to it carefully: it is not an articulate, clear, well-defined sound; it is something which would fain be prolonged by reverberating from one to another.

In laughter we always find an unavowed intention to humiliate and consequently to correct our neighbour.

The idea of the future, pregnant with an infinity of possibilities, is thus more fruitful than the future itself, and this is why we find more charm in hope than in possession, in dreams than in reality.

Only those ideas that are least truly ours can be adequately expressed in words.

For life is tendency, and the essence of a tendency is to develop in the form of a sheaf, creating, by its very growth, divergent directions among which its impetus is divided.

The only cure for vanity is laughter. And the only fault that’s laughable is vanity.

The desire that guides me in all I do is the desire to harness the forces of nature to the service of mankind.

A body in motion tends to stay in motion unless acted on by an outside force.

Do not train a child to learn by force or harshness; but direct them to it by what amuses their minds, so that you may be better able to discover with accuracy the peculiar bent of the genius of each.

No one should be forced to carry the unfulfilled self of another.

To be sensual, I think, is to respect and rejoice in the force of life, of life itself, and to be present in all that one does, from the effort of loving to the breaking of bread.

When two forces unite, their efficiency double.

Without knowing the force of words, it is impossible to know more.

Every body persists in a state of rest or of uniform motion in a straight line, unless it is compelled to change that state by forces having impact upon it.