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.
EpictetusWhat is it that every man seeks? To be secure, to be happy, to do what he pleases without restraint and without compulsion.
EpictetusDon’t consent to be hurt and you won’t be hurt – this is a choice over which you have control
EpictetusWhen something happens, the only thing in your power is your attitude toward it; you can either accept it or resent it.
Epictetus