人的精神是世界上最宝贵的东西。

The PAC learning framework provides a formal way to quantify the learnability of a concept class.

Technology decisions must balance foresight and practicality.

自由在于做自己所愿。

"Memory is a fragile thing, but it is also our most powerful tool for understanding the past."

今天我们种下的每一棵树，都是留给素未谋面的后代的遗产。

到达顶峰的唯 一方法是攀登高山，而不是等待电梯。

科学的美在于它能不断给我们带来惊喜。