In life our first job is this, to divide and distinguish things into two categories: externals I cannot control, but the choices I make with regard to them I do control. Where will I find good and bad? In me, in my choices.

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.

I am not eternity, but a man; a part of the whole, as an hour is of the day.

What disturbs people, these are not things, but the judgments relating to things

If you want to improve, be content to be thought foolish and stupid.

Happiness and freedom begin with a clear understanding of one principle: Some things are within our control, and some things are not.

In theory there is nothing to hinder our following what we are taught;but in life there are many things to draw us aside.