Necessity is not an established fact, but an interpretation.
Buddhists were actually the first cognitive-behavioral therapists.
Things may happen around you, and things may happen to you, but the only things that matter are the things that happen in you.
The relish of good and evil depends in a great measure upon the opinion we have of them.
The depressed man lives in a depressed world.
We should pledge ourselves to the proposition that the irresponsible life is not worth living.
Things can never touch the soul, but stand inert outside it, so that disquiet can arise only from fancies within.