“A happy life is impossible, the highest thing that man can aspire to is a heroic life; such as a man lives, who is always fighting against unequal odds for the good of others; and wins in the end without any thanks. After the battle is over, he stands like the Prince in the re corvo of Gozzi, with dignity and nobility in his eyes, but turned to stone. His memory remains, and will be reverenced as a hero’s; his will, that has been mortified all his life by toiling and struggling, by evil payment and ingratitude, is absorbed into Nirvana.”—Arthur Schopenhauer
A quote I find relevant: