风俗的专制无处不是人类进步的阻碍。

PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。

"The best stories are those that challenge us to see the world differently."

There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.

Innovation is the ability to see change as an opportunity, not a threat.

"Drawing is like dreaming with your eyes open."

Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently.