Happiness and freedom begin with a clear understanding of one principle: Some things are within our control, and some things are not. It is only after you have faced up to this fundamental rule and learned to distinguish between what you can and can't control that inner tranquility and outer effectiveness become possible.

Don't be prideful with any excellence that is not your own

Lampis the ship owner, on being asked how he acquired his great wealth, replied, My great wealth was acquired with no difficulty, but my small wealth, my first gains, with much labor.

If evil be spoken of you and it be true, correct yourself, if it be a lie, laugh at it.

No great thing is created suddenly.

To accuse others for one's own misfortunes is a sign of want of education. To accuse oneself shows that one's education has begun. To accuse neither oneself nor others shows that one's education is complete.

You know yourself what you are worth in your own eyes; and at what price you will sell yourself. For men sell themselves at various prices. This is why, when Florus was deliberating whether he should appear at Nero's shows, taking part in the performance himself, Agrippinus replied, 'Appear by all means.' And when Florus inquired, 'But why do not you appear?' he answered, 'Because I do not even consider the question.'