The universe is a vast and mysterious place, and we are only beginning to understand its complexities.

The key to good design is to make things simple, but not simpler.

"There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best."

解释：货卖完了才知道不足，是由于不懂得计量；事情结束了才知道有余，是由于不懂得调节。