If you want to improve, be content to be thought foolish and stupid with regard to external things. Don't wish to be thought to know anything; and even if you appear to be somebody important to others, distrust yourself. For, it is difficult to both keep your faculty of choice in a state conformable to nature, and at the same time acquire external things. But while you are careful about the one, you must of necessity neglect the other

To make anything a habit, do it; to not make it a habit, do not do it; to unmake a habit, do something else in place of it.

It is not the events but our viewpoint toward events that is the determining factor. We ought to be more concerned about removing wrong thoughts from the mind than removing tumors and abscesses from the body.

Wisdom means understanding without any doubt that circumstances do not rise to meet our expectations. Events happen as they may. People behave as they will.

We cannot choose our external circumstances, but we can always choose how we respond to them.

It is impossible to begin to learn that which one thinks one already knows.

When you have decided that a thing ought to be done and are doing it, never avoid bein seen doing it, though many shall form an unfavorable opinion about it. For if it is not right to do it, avoid doing the thing; but if it is right, why are you afraid of those who shall find fault wrongly?