Consider first the nature of the business in hand; then examine thy own nature, whether thou hast strength to undertake it.
EpictetusFight against yourself, recover yourself to decency, to modesty, to freedom. And, in the first place, condemn your actions; but when you have condemned them, do not despair of yourself. For both ruin and recovery are from within.
EpictetusWhat disturbs and alarms man are not the things, but his opinions and fancies about the things.
Epictetus