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

哲学的本质不是拥有真理，而是寻找真理。

在炮火下进入脑海的思想会牢固而永久地留在那里。

Pain is not always physical; sometimes the deepest wounds are the ones we cannot see.

译文：只有贤明，品德高尚的人，才能令人信服。