After knowledge of the physical forces, their laws and their mutual relations, comes the question of their origin.
在了解物理力、它们的规律及相互关系之后，接下来是它们起源的问题。
"The very essence of romance is uncertainty."
Sustainable forestry is not an option; it's our responsibility.
The truth is not in the facts, but in the way we remember them.
你的故事还没有结束。
"Life is really simple, but we insist on making it complicated."