Mathematics is the science of patterns, and we study them to understand how things work.

求知若饥，虚心若愚。

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.

Science is the knowledge of consequences, and dependence of one fact upon another.

Keep it simple, repeat simple things.