The universe would look to a two-dimensional creature who spend its life moving on the service of what turned out to be a globe， it could travel for millions of years and would always return to its starting point， it would never be conscious of what was above it or beneath it.

蓬皮杜中心是一个巨大的Meccano玩具套装，一个内外颠倒的建筑。

煤炭的未来不在于数量，而在于我们能否清洁高效地利用它。