I will be sufficiently rewarded if when telling it to others you will not claim the discovery as your own, but will say it was mine.

Nothing is more active than thought, for it travels over the universe, and nothing is stronger than necessity for all must submit to it.

The past is certain, the future obscure.

What man is happy? He who has a healthy body, a resourceful mind, and a docile nature.

Avoid doing what you would blame others for doing.

What is it that is most beautiful? - The Universe; for it is the work of God. What is most powerful? - Necessity; because it triumphs over all things. What is most difficult? - To know one's self. What is most easy? - To give advice. What method must we take to lead a good life? - To do nothing we would condemn in others. What is necessary to happiness? - A sound body and a contented mind.

Take Time by the forelock.