大脑就像肌肉一样,当我们使用时会感到愉悦。理解是充满欢乐的。
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
保持好奇心是创新的源泉。
In the end, it is not the years in your life that count, but the life in your years.