Happiness is not something ready-made. It comes from your own actions.
To feel much for others and little for ourselves; to restrain our selfishness and exercise our benevolent affections, constitute the perfection of human nature.
让我们尝试教导慷慨和利他主义,因为我们天生自私。
Everything that happens once can never happen again. But everything that happens twice will surely happen a third time.