An incalculable amount of tension and useless effort would be spared in this world if we realized that cooperation and love can never be won by force.
如果我们能意识到武力永远无法赢得合作与爱，这个世界就可以避免无数的紧张关系，不用做那么多的无用功。
Sustainability is not an option; it's a necessity for the future of our planet.
The only thing that overcomes hard luck is hard work.
理论是灰色的，而生活之树常青。
如果你想理解功能，就研究结构。