Be tolerant with others and strict with yourself.

Persuade me or prove to me that I am mistaken in thought or deed, and I will gladly change - for it is the truth I seek, and the truth never harmed anyone. Harm comes from persisting in error and clinging to ignorance.

There is change in all things. You yourself are subject to continual change and some decay, and this is common to the entire universe.

And can anything else that is useful be accomplished without change? Do you not see then that for yourself also to change is just the same, and equally necessary for the universal nature?

Live not one's life as though one had a thousand years, but live each day as the last.

Run down the list of those who felt intense anger at something: the most famous, the most unfortunate, the most hated, the most whatever: Where is all that now? Smoke, dust, legend...or not even a legend. Think of all the examples. And how trivial the things we want so passionately are.

I, who have never willfully pained another, have no business to pain myself.