如果我们从一开始就能预见，甚至证明，遵循某种方法我们将达到我们的目标，那么这种解决方法就是完美的。
A method of solution is perfect if we can foresee from the start, and even prove, that following that method we shall attain our aim.
Sustainability isn't an option; it's a necessity for the future of energy.
Don't touch me； I'll die if you touch me.
我们都是自己的幽灵，游荡在自己的生命里。
诗歌是反映灵魂的镜子。