The greatest part of what we say and do is really unnecessary. If a man takes this to heart, he will have more leisure and less uneasiness.

What we do now echoes in eternity.

If it's in your control, why do you do it? If it's in someone else's control, then who are you blaming? Atoms? The gods? Stupid either way. Blame no one. Set people straight, if you can. If not, just repair the damage.

No matter what anyone says or does, my task is to be emerald, my color undiminished.

Be tolerant with others and strict with yourself.

Understand however that every man is worth just so much as the things are worth about which he busies himself.

I cannot comprehend how any man can want anything but the truth.