Be lamps unto yourselves; be your own confidence. Hold truth within yourselves.
Let him the intelligent man admonish, let him teach, let him forbid what is improper ! - he will be beloved of the good, by the bad he will be hated.
The mind is the source of happiness and unhappiness.
Believe there is good in the world.
Suffering is wishing things were other than they are.
Why are you so sure parallel lines exist? Believe nothing, merely because you have been told it, or because it is traditional, or because you have imagined it.