The greatest gift you can give yourself is self-love.
孩子从书中学到的最重要的事情是他们很重要。
The pursuit of mathematical truth requires both intuition and rigor.
Identity is a fragile thing, easily lost and hard to regain.
Happiness in this world, when it comes, comes incidentally. Make it the objet of pursuit, and it leads us a wild-goose chase, and is never attained. Follow some other object, and very possibly we may find that we have cought happiness without dreaming of it.