Remember that I too am mortal.
The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not.
Life contains but two tragedies. One is not to get your heart's desire; the other is to get it.
Silence is the most perfect expression of scorn.
Do not try to live forever. You will not succeed.
Do not do unto others as you expect they should do unto you. Their tastes may not be the same.