The best songs come from the most honest places.

Poor is the man whose pleasures depend on the permission of another.

要想成功，你必须愿意失败。

Innovation is seeing what everybody has seen and thinking what nobody has thought.

因果推断不仅仅是统计显著性；它关乎理解数字背后的机制。

世界上有开朗的悲观主义者吗？我就是这样的人。