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.

If there were one word that could act as a standard of conduct for one's entire life, perhaps it would be 'thoughtfulness.

To be wronged is nothing unless you continue to remember it.

Ask yourself constantly, "What is the right thing to do?" Behave toward everyone as if receiving a great guest.

When you see a worthy person, endeavor to emulate him. When you see an unworthy person, then examine your inner self.

Don't be concerned that you have no position; be concerned how you may fit yourself to occupy one. .

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.