We cannot teach children the danger of telling lies to men without realising, on the man's part, the danger of telling lies to children. A single untruth on the part of the master will destroy the results of his education.

The political body, therefore, is also a moral being which has a will; and this general will, which tends always to the conservation and well-being of the whole and of each part of it ... is, for all members of the state ... the rule of what is just or unjust.

Never did I think so much, exist so much, be myself so much as in the journeys I have made alone and on foot. Walking has something about it which animates and enlivens my ideas. I can hardly think while I am still; my body must be in motion to move my mind.

Slaves lose everything in their chains, even the desire of escaping from them.

Or, rather, let us be more simple and less vain.

There is not a single ill-doer who could not be turned to some good.

He who has the base necessities of life should pay nothing; taxation on him who has a surplus may, if need be; extend to everything beyond necessities.