这个世界是个美好的地方，值得为之奋斗。
The world is a fine place and worth the fighting for.
你无法从那样的失去中恢复；你只能学会与之共存。
The more we learn about the universe, the more we realize how much we have yet to discover.
The mind is not a thing, but a process—an ever-changing flow of experiences and adaptations.
美国农业面临的最大危险是家庭农场的消失。