我不是因为快乐而唱歌;我因为唱歌而快乐。
I don't sing because I'm happy; I'm happy because I sing.
ORDER. Let all your things have their places; let each part of your business have its time.
每一种材料都有其智慧。
The laws of physics are the same everywhere in the universe, and that is a profound truth that connects us all.