The best revenge is to improve yourself.

Lead such a life, that, when you die, the people may mourn you, and while you are alive they long for your company.

Perfecting one's intellect causes one to speak less, and those words spoken will be adorned with wisdom.

No wealth like education and no poverty like ignorance

Do not use the sharpness of your speech on your mother who taught you how to speak.

Silence is the garden of thought.

The highest person is he who is of most use to humankind.