Sustainability is not an option; it's a necessity for the future of our planet.
当权力稀缺时,一点点权力都充满诱惑。
"To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment."
When you attack coal, you attack middle America.
数学理论的真正价值在于它能够连接看似无关的想法。