What is learned without pleasure is forgotten without remorse.
We tell lies, yet it is easy to show that lying is immoral.
It's so simple really: If you say you're going to do something, do it. If you start something, finish it.
Let no man think that he is loved by any who loveth none.
Ask yourself: Does this appearance (of events) concern the things that are within my own control or those that are not? If it concerns anything outside your control, train yourself not to worry about it.
Circumstances don't make the man, they only reveal him to himself.