Success in business comes from understanding not just your customers, but the world they live in.
I think goals should never be easy, they should force you to work, even if they are uncomfortable at the time.
事实是顽固的东西;无论我们的愿望、倾向或激情的驱使如何,它们都无法改变事实和证据的状态。
数学之美只会向更有耐心的追随者展现。
两个物体的相互作用力总是大小相等,方向相反,同时出现或消失且作用于同一直线上。
If you want to build a great enterprise, you have to have the courage to dream great dreams.