Avoid doing what you would blame others for doing.
The most difficult thing in life is to know yourself.
Conceal thy domestic ills.
I will be sufficiently rewarded if when telling it to others you will not claim the discovery as your own, but will say it was mine.
Nothing is more active than thought, for it travels over the universe, and nothing is stronger than necessity for all must submit to it.
If there is neither excessive wealth nor immoderate poverty in a nation, then justice may be said to prevail.