Remember that to change your mind and follow him who sets you right is to be none the less free than you were before.

Leave other people's mistakes where they lie.

Art thou angry with him whose armpits stink? Art thou angry with him whose mouth smells foul?

Bear in mind that the measure of a man is the worth of the things he cares about. If it is good to say or do something, then it is even better to be criticized for having said or done it.

You must become an old man in good time if you wish to be an old man long.

Do not waste what remains of your life in speculating about your neighbors, unless with a view to some mutual benefit. To wonder what so-and-so is doing and why, or what he is saying, or thinking, or scheming -- in a word, anything that distracts you from fidelity to the ruler within you -- means a loss of opportunity for some other task.

Accustom yourself not to be disregarding of what someone else has to say: as far as possible enter into the mind of the speaker.