真正的创新发生在你走出舒适区的时候。
The best things in life are free.
质量不是一种行为，而是一种习惯。
The study of black holes has led us to the edge of our understanding, where the known laws of physics break down and new theories must emerge.
我们不是从祖先那里继承了地球，而是从子孙那里借来的。