世界是黑暗的，而光弥足珍贵。
The world is dark, and light is precious.
To say goodbye is to die a little.
"The fundamental fact about all of us is that we're alive for a while but will die before long. This fact is the real root cause of all our anger and pain."
宇宙的扭曲面——黑洞、虫洞、奇点等——是一个谜团，一个挑战我们理解的奥秘。
