What concerns me is not the way things are, but rather the way people think things are.
To a reasonable creature, that alone is insupportable which is unreasonable; but everything reasonable may be supported.
Freedom and happiness are won by disregarding things that lie beyond our control.
To live a life of virtue, you have to become consistent, even when it isn't convenient, comfortable, or easy.
The essence of good and evil is a certain disposition of the will.
In a word, neither death, nor exile, nor pain, nor anything of this kind is the real cause of our doing or not doing any action, but our inward opinions and principles.