物理系统的对称性反映在其能级的简并性上。
虽然无法改变过去,但可以改变未来。
Innovation often happens at the boundaries of different fields.
We believe that we need to own and control the primary technologies behind the products we make.
我们拥有的最伟大工具是我们心灵的力量。
写作的行为是一种自由的行为。