My only fear is doing something contrary to human nature - the wrong thing, the wrong way, or at the wrong time.

Purge your mind of all aimless and idle thoughts, especially those that pry into the affairs of others or wish them ill.

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

Blot out vain pomp; check impulse; quench appetite; keep reason under its own control.

It is a ridiculous thing for a man not to fly from his own badness, which is indeed possible, but to fly from other men's badness, which is impossible.

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.

How barbarous, to deny men the privilege of pursuing what they imagine to be their proper concerns and interests! Yet, in a sense, this is just what you are doing when you allow your indignation to rise at their wrongdoing; for after all, they are only following their own apparent concerns and interests. You say they are mistaken? Why then, tell them so, and explain it to them, instead of being indignant.