The concept of computational efficiency is central to the design of learning algorithms.

做给别人看很简单，做给自己看却很难。

有机体有一个基本的趋势和努力——实现、维持和增强体验中的有机体。

爱和艺术是灵魂飞向天堂的两只翅膀。

Never let age be a barrier to learning or discovery.