People pay the doctor for his trouble; for his kindness they still remain in his debt.
Seneca the YoungerThere is the need for someone against which our characters can measure themselves. Without a ruler, you won't make the crooked straight.
Seneca the YoungerHe that does good to another does good also to himself, not only in the consequence but in the very act. For the consciousness of well-doing is in itself ample reward.
Seneca the Younger