It is essential to make oneself used to putting up with a little. Even the wealthy and the well provided are continually met and frustrated by difficult times and situations. It is in no man's power to have whatever he wants; but he has it in his power not to wish for what he hasn't got, and cheerfully make the most of the things that do come his way.
Seneca the YoungerOur minds must relax: they will rise better and keener after rest. Just as you must not force fertile farmland, as uninterrupted productivity will soon exhaust it, so constant effort will sap our mental vigour, while a short period of rest and relaxation will restore our powers. Unremitting effort leads to a kind of mental dullness and lethargy.
Seneca the YoungerMisfortunes, in fine, cannot be avoided; but they may be sweetened, if not overcome, and our lives made happy by philosophy.
Seneca the Younger