Watch yourself as you go about your daily business and later reflect on what you saw, trying to identify the sources of distress in your life and thinking about how to avoid that distress.

No man is free who is not master of himself.

Books are the training weights of the mind.

It is our attitude toward events, not events themselves, which we can control. Nothing is by its own nature calamitous -- even death is terrible only if we fear it.

If someone speaks badly of you, do not defend yourself against the accusations, but reply; "you obviously don't know about my other vices, otherwise you would have mentioned these as well

Some of their faults men readily admit, but others not so readily.

We do not choose our own parts in life, and have nothing to do with those parts. Our duty is confined to playing them well.