"The use of traveling is to regulate imagination by reality, and instead of thinking how things may be, to see them as they are."
旅行的用途是用现实来调节想象力，而不是想象事情可能是怎样的，而是看到它们实际是怎样的。
在物理学中，最简单的解释往往是正确的。
The language of mathematics is universal, transcending cultural and linguistic barriers.
The best scientists are those who never stop asking why.