Gravity explains the motions of the planets, but it cannot explain who sets the planets in motion.
引力解释了行星的运动，但它不能解释谁让行星运动。
翻译：懂得满足的人不会被利益束缚，注重内心修养的人，即便没有显赫地位也内心坦荡。
Surround yourself with those who are going to lift you higher.
我不是一个回头看的人。我总是向前看。
Success is not about how much money you make, it's about the difference you make in people's lives.
