Time is money, don't waste it.

实现明天理想的唯一障碍是今天的疑虑。

应该让材料自己说话。

我们都在阴沟里，但有些人却在仰望星空。

"Children's literature should be taken seriously because it shapes young minds."

The true man wants two things: danger and play. For that reason he wants woman, as the most dangerous plaything.

在计算学习的背景下，“可能近似正确”（PAC）学习的概念为理解学习算法的效率和可行性提供了一个框架。