It is useful to constantly observe, note, and consider.
In the days of thy youth seek to obtain that which shall compensate the losses of thy old age.
The light and heat of the universe comes from the sun, and its cold and darkness from the withdrawal of the sun.
Every obstacle is destroyed through rigor.
Necessity is a guardian in Nature.
Patience serves us against insults precisely as clothes do against the cold. For if you multiply your garments as the cold increases, that cold cannot hurt you; in the same way increase your patience under great offenses, and they cannot hurt your feelings.