Keep three things always ready in your mind: First, about your own actions — make sure you do nothing without purpose or against what is right and fair. Second, about things that happen to you from outside — they happen either by chance or by providence. Either way, it makes no sense to blame them.
These three things thou must have always in a readiness: first concerning thine own actions, whether thou doest nothing either idly, or otherwise, than justice and equity do require: and concerning those things that happen unto thee externally, that either they happen unto thee by chance, or by providence; of which two to accuse either, is equally against reason.