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

The man of noble mind seeks to achieve the good in others and not their evil. The little-minded man is the reverse of this.

To be fond of learning is near to wisdom.

The man of humanity delights in mountains

If the gentleman is not serious, he will not be respected, and his learning will not be on a firm foundation. He considers loyalty and faithfulness to be fundamental, has no friends who are not like him, and when he has made mistakes, he is not afraid of correcting them.

To know that one knows what one knows, and to know that one doesn't know what one doesn't know, there lies true wisdom.

At fifteen my mind was directed to study, and at thirty I knew where to stand.