The future is always changing, but the past is always the same.
You can't manage what you don't measure.
解释：皮都不存在了，毛还在哪依附呢？
Simplicity is not the absence of complexity, but the resolution of it.
我永远不会停止学习和尝试变得更好。
凡是现实(存在)的就是合理的，凡是合理(存在)的就是现实的。