An angry look on the face is wholly against nature. If it be assumed frequently, beauty begins to perish, and in the end is quenched beyond rekindling.

It's silly to try to escape other people's faults. They are inescapable. Just try to escape your own.

After all, what does fame everlasting mean? Mere vanity.

Don't go on discussing what a good person should be. Just be one.

Things can never touch the soul, but stand inert outside it, so that disquiet can arise only from fancies within.

Neither in writing nor in reading wilt thou be able to lay down rules for others before thou shalt have first learned to obey rules thyself.

Nature which governs the whole will soon change all things which you see, and out of their substance will make other things and again other things... in order that the world may be ever new.