Consider first the nature of the business in hand; then examine thy own nature, whether thou hast strength to undertake it.

Men are disturbed not by the things that happen, but by their opinion of the things that happen.

You may fetter my leg, but Zeus himself cannot get the better of my free will.

Do not laugh much or often or unrestrainedly.

Fight against yourself, recover yourself to decency, to modesty, to freedom. And, in the first place, condemn your actions; but when you have condemned them, do not despair of yourself. For both ruin and recovery are from within.

Whatever you would make habitual, practice it; and if you would not make a thing habitual, do not practice it, but accustom yourself to something else.

You are but an appearance, and not absolutely the thing you appear to be.