The problem is to find a form of association which will defend and protect with the whole common force the person and goods of each associate, and in which each, while uniting himself with all, may still obey himself alone, and remain as free as before.

The man is best served who has no occasion to put the hands of others at the end of his own arms.

Accent is the soul of language; it gives to it both feeling and truth.

Take from the philosopher the pleasure of being heard and his desire for knowledge ceases.

To endure is the first thing that a child ought to learn, and that which he will have the most need to know.

To be sane in a world of madman is in itself madness.

Education is either from nature, from man or from things. The developing of our faculties and organs is the education of nature; that of man is the application we learn to make of this very developing; and that of things is the experience we acquire in regard to the different objects by which we are affected. All that we have not at our birth, and that we stand in need of at the years of maturity, is the gift of education.