The best ideas often come when you least expect them.
法律權利的概念是復雜的，不僅涉及規(guī)則的存在，還涉及救濟的存在。
書是一個你可以握在手中的世界。
Quality is not a concept; it is a reality.
It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.
True innovation comes from a deep understanding of existing problems.