A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.
真相不在光明中,而在我们不敢探索的阴影里。
The world is full of obvious things which nobody by any chance ever observes.
真正的悲剧是那个人生中从未为他的一次至高无上的努力振作过,从未发挥过他的全部能力,从未挺直过他的全身。