There are no greater wretches in the world than many of those whom people in general take to be happy.
Half the work that is done in this world is to make things appear what they are not.
You are only what you are when no one is looking.
The world is governed more by appearances than by realities, so that it is fully as necessary to seem to know something as to know it.
Apathy is a sort of living oblivion.
Borrow trouble for yourself, if that is your nature, but don't lend it to your neighbors.
How much have cost us the evils that never happened?
Do not anticipate trouble, or worry about what may never happen. Keep in the sunlight.
We have a lot of anxieties, and one cancels out another very often.
Never trouble trouble till trouble troubles you.