科学的挑战不仅在于找到答案，还要理解其更深层次的含义。

"The modern world is a place of endless distractions, but true fulfillment comes from within."

Travel changes you. As you move through this life and this world you change things slightly， you leave marks behind， however small. And in return， life—and travel—leaves marks on you.

A wise man said， “Before you speak， let your words pass through three gates. At the first gate， ask yourself， “Is it true？” At the second gate ask， “Is it necessary？” At the third gate ask， “Is it kind？”