And thou wilt give thyself relief, if thou doest every act of thy life as if it were the last.

If it's time for you to go, leave willingly - as you would to accomplish anything that can be done with grace and honor.

No man is happy who does not think himself so.

It is within our power not to make a judgement about something, and so not disturb our minds; for nothing in itself possesses the power to form our judgements.

Take care that you entertain no notions unsuitable to virtue and reasonable nature.

Remember this - that there is a proper dignity and proportion to be observed in the performance of every act of life.

What springs from earth dissolves to earth again, and heaven-born things fly to their native seat.