“Man’s first law is to watch over his own preservation; his first care he owes to himself; and as soon as he reaches the age of reason, he becomes the only judge of the best means to preserve himself; he becomes his own master.”

“God (Nature, in my view) makes all things good; man meddles with them and they become evil. He fores one soil to yield the products of another, one tree to bear another's fruit. He confuses and confounds time, place, and natural conditions. He mutilates his dog, his horse, and his slave. He destroys and defaces all things; he loves all that is deformed and monstrous; he will have nothing as nature made it, not even himself, who must learn his paces like a saddle-horse, and be shaped to his master's taste like the trees in his garden.”

“In fact, the real source of all thosedifferences, is that the savage lives within himself, whereas thecitizen, constantly beside himself, knows only how to live in theopinion of others; insomuch that it is, if I may say so, merely fromtheir judgment that he derives the consciousness of his own existence.”

“It is reason which breeds pride and reflection which fortifies it; reason which turns man inward into himself; reason which separates him from everything which troubles or affects him. It is philosophy which isolates a man, and prompts him to say in secret at the sight of another suffering: 'Perish if you will; I am safe.' No longer can anything but dangers to society in general disturb the tranquil sleep of the philosopher or drag him from his bed. A fellow-man may with impunity be murdered under his window, for the philosopher has only to put his hands over his ears and argue a little with himself to prevent nature, which rebels inside him, from making him identify himself with the victim of the murder. The savage man entirely lacks this admirable talent, and for want of wisdom and reason he always responds recklessly to the first promptings of human feeling.”

“Teach your scholar to observe the phenomena of nature; you will soon rouse his curiosity, but if you would have it grow, do not be in too great a hurry to satisfy this curiosity. Put the problems before him and let him solve them himself. Let him know nothing because you have told him, but because he has learnt it for himself. Let him not be taught science, let him discover it. If ever you substitute authority for reason he will cease to reason; he will be a mere plaything of other people's thoughts.”

“Every man having been born free and master of himself, no one else may under any pretext whatever subject him without his consent. To assert that the son of a slave is born a slave is to assert that he is not born a man.”

“Every person has a right to risk their own life for the preservation of it.”