Time is like a river made up of the events which happen, and a violent stream; for as soon as a thing has been seen, it is carried away, and another comes in its place, and this will be carried away too.

Cultivate these, then, for they are wholly within your power: sincerity and dignity; industriousness; and sobriety. Avoid grumbling, be frugal, considerate, and frank; be temperate in manner and speech; carry yourself with authority.

There is a limit circumscribed to your time – if you do not use it to clear away your clouds, it will be gone, and you will be gone, and the opportunity will not return

Most of what we say and do is not essential. If you can eliminate it, you'll have more time, and more tranquillity. Ask yourself at every moment, 'Is this necessary?'

How much more grievous are the consequences of anger than the causes of it.

What is not good for the swarm is not good for the bee.

Leave other people's mistakes where they lie.