When you have been compelled by circumstances to be disturbed in any manner, quickly return to yourself, and do not continue out of tune longer than the compulsion lasts. You will have increasing control over your own harmony by continually returning to it.

Tranquility is nothing else than the good ordering of the mind.

In one way an arrow moves, in another way the mind. The mind indeed, both when it exercises caution and when it is employed about inquiry, moves straight onward not the less, and to its object.

Begin - to begin is half the work, let half still remain; again begin this, and thou wilt have finished.

The world is a living being - one nature, one soul. Keep that in mind.

Let thy chief fort and place of defense be a mind free from passions. A stronger place and better fortified than this, hath no man.

The most complete revenge is not to imitate the aggressor.