The only thing that isn't worthless: to live this life out truthfully and rightly, And be patience with those who don't.

Submit to the fate of your own free will.

Nowhere can man find a quieter or more untroubled retreat than in his own soul.

Doctors keep their scalpels and other instruments handy, for emergencies. Keep your philosophy ready too - ready to understand heaven and earth. In everything you do, even the smallest thing, remember the chain that links them. Nothing earthly succeeds by ignoring heaven, nothing heavenly by ignoring earth.

We are born for cooperation

But this is altogether a mark of the most common sort of men, for it is in your power whenever you choose to retire into yourself.

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