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.

It is not things in themselves which trouble us, but our opinions of things.

When something happens, the only thing in your power is your attitude toward it. It is not the things that disturb us, but our interpretation of their significance. Things and people are not what we wish them to be nor are they what they seem to be. They are what they are.

We ought to flee the friendship of the wicked, and the enmity of the good.

Ask yourself, "How are my thoughts, words and deeds affecting my friends, my spouse, my neighbour, my child, my employer, my subordinates, my fellow citizens?"

When we name things correctly, we comprehend them correctly, without adding information or judgements that aren't there. Does someone bathe quickly? Don't say be bathes poorly, but quickly. Name the situation as it is, don't filter it through your judgments. Give your assent only to that which is actually true.

Men are not afraid of things, but of how they view them.