一个人和他想要的生活之间唯一的障碍往往只是尝试的意愿和相信它可能的信念。
我想成为我一直想成为的样子:占据主导地位。
Don't let yesterday take up too much of today.
The essence of mathematics lies in its power to reveal patterns and symmetries.
We must balance the need for energy security with the imperative of reducing emissions.