If one should desire to know whether a kingdom is well governed, if its morals are good or bad, the quality of its music will furnish the answer.

Even if I could, I would not exahnge their virtues for my own. And that is why they are intent on learning from me.

Stars are holes in the sky from which the light of the infinite shines.

There is nothing impossible in all the world except that the heart of man is wanting in resolution.

Excess weakens the spirits.

Only one who bursts with enthusiasm do I instruct; Only one who bubbles with excitement do I enlighten. If I hold up one corner and you do not come back to me with the other three, I do not continue the lesson.

It is not the failure of others to appreciate your abilities that should trouble you, but rather your failure to appreciate theirs.