饥者不得食、寒者不得衣、劳者不得息。
人民有三种忧患：饥饿的得不到食物、寒冷的得不到衣物、劳苦的得不到休息。
"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."
人生は、予測不可能な冒険だ。
In machine learning, the trade-off between bias and variance is crucial for achieving good generalization.
已知有限，未知无穷；在理智上，我们立于无边不可解海洋中的一座小岛。
