我们对宇宙理解的唯一限制是我们的想象力。
明智的人会将自己的信仰与证据相协调。
Literature is a force that can change the world.
The challenge of our time is to build an economy that works for everyone, not just the privileged few.
我们今天所做的每一个决定都在塑造我们明天生活的世界。