What you know, you know, what you don't know, you don't know. This is true wisdom.

Charity is that rational and constant affection which makes us sacrifice ourselves to the human race, as if we were united with it, so as to form one individual, partaking equally in its adversity and prosperity.

I am not concerned that I am not known, I seek to be worthy to be known.

Music produces a kind of pleasure which human nature cannot do without.

The Master said, At fifteen I set my heart upon learning. At thirty, I had planted my feet firm upon the ground. At forty, I no longer suffered from perplexities. At fifty, I knew what were the biddings of Heaven. At sixty, I heard them with docile ear. At seventy, I could follow the dictates of my own heart; for what I desired no longer overstepped the boundaries of righ.

To love a thing means wanting it to live.

If a man keeps cherishing his old knowledge so as continually to be acquiring new, he may be a teacher of others.