Every difficulty in life presents us with an opportunity to turn inward and to invoke our own submerged inner resources. The trials we endure can and should introduce us to our strengths.

On the occasion of every accident that befalls you, remember to turn to yourself and inquire what power you have for turning it to use.

One that desires to excel should endeavor in those things that are in themselves most excellent.

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.

Wherever any one is against his will, that is to him a prison.

Shall I show you the sinews of a philosopher? What sinews are those? - A will undisappointed; evils avoided; powers daily exercised; careful resolutions; unerring decisions.

Don't explain your philosophy. Embody it.