如果你无法简单地解释它,说明你理解得还不够透彻。
The only limit to our realization of tomorrow will be our doubts of today.
在一个欺骗的时代,说出真相就是一种革命行为。
You can't manage what you don't measure.
The beauty of astronomy lies in its ability to connect us to the vastness of the cosmos.