The only real peace is the peace of the heart.
正该来时,先生(老子)应时来到这世间;正该去时,先生顺时离开这世间。安于时势,顺应自然规律,哀乐就不能进入心中。
Silence in a picture book can be louder than words.
A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.