人类是一种非常奇特的生物。他以为自己有灵魂,但他所拥有的只是一具躯体。
The human being is a most curious creature. He thinks he has a soul, but all he has is a body.
Coal will remain a vital energy source, but only if we evolve with the times.
The beauty of mathematics lies in its ability to describe the universe in the most abstract terms.