学习理论中的一个关键见解是，假设类的复杂性对于泛化至关重要。
A key insight in learning theory is that the complexity of a hypothesis class is crucial for generalization.
How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in your life you will have been all of these.