- "He who knows no hardships will know no hardihood. He who faces no calamity will need no courage. Mysterious though it is, the characteristics in human nature which we love best grow in a soil with a strong mixture of troubles."
- Harry Emerson Fosdick
- "Beware that, when fighting monsters, you yourself do not become a monster... for when you gaze long into the abyss. The abyss gazes also into you."
