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.

Your first duty is to be humane. Love childhood. Look with friendly eyes on its games, its pleasures, its amiable dispositions. Which of you does not sometimes look back regretfully on the age when laughter was ever on the lips and the heart free of care? Why steal from the little innocents the enjoyment of a time that passes all too quickly?

The visible order of the universe proclaims a supreme intelligence.

Yes, if the life and death of Socrates are those of a wise man, the life and death of Jesus are those of a god.

To renounce liberty is to renounce being a man, to surrender the rights of humanity and even its duties. For he who renounces everything no indemnity is possible. Such a renunciation is incompatible with man's nature; to remove all liberty from his will is to remove all morality from his acts.

Teach by doing whenever you can, and only fall back upon words when doing it is out of the question.

The thirst after happiness is never extinguished in the heart of man.