To know what you know and what you do not know, that is true knowledge.

The superior man understands what is right; the inferior man understands what will sell.

When we see men of a contrary character, we should turn inwards and examine ourselves.

He who will not economize will have to agonize.

By nature, men are nearly alike; by practice, they get to be wide apart.

Choose a job you love, and you will never have to work a day in your life.

Ignorance is the night of the mind, but a night without moon and star.

Without feelings of respect, what is there to distinguish men from beasts?

Success depends upon previous preparation, and without such preparation there is sure to be failure.

If I am walking with two other men, each of them will serve as my teacher. I will pick out the good points of the one and imitate them, and the bad points of the other and correct them in myself.

The strength of a nation derives from the integrity of the home.

It does not matter how slowly you go as long as you do not stop.

You cannot open a book without learning something.

If you think in terms of a year, plant a seed; if in terms of ten years, plant trees; if in terms of 100 years, teach the people.

The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools.

A superior man is modest in his speech, but exceeds in his actions.

Humility is the solid foundation of all virtues.

Study the past, if you would define the future.

I want you to be everything that’s you, deep at the center of your being.