If you can do only a little. Do what you can. What you cannot enforce, do not command.
To know thyself is the beginning of wisdom.
You never know a line is crooked unless you have a straight one to put next to it.
Be of good cheer about death and know this as a truth, that no evil can happen to a good man, either in life or after death
So you would rather suffer an injustice than do an injustice?
It is not difficult to avoid death. It is much more difficult to avoid wickedness, for it runs faster than death.