鱼是我所喜欢的，熊掌也是我所喜欢的，两种东西不能同时拥有，就舍弃鱼去取得熊掌。生命是我所喜欢的，义也是我所喜欢的，如果两种东西不能同时拥有，就舍弃生命去取得大义。

It's not just the ad, but the product that must be interesting.

It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.

书籍是人类灵魂的镜子，它们反映出我们最深层的恐惧和希望。

思维在于设想、实现结构特征和结构要求。

煤炭的未来在于平衡环境责任与能源需求。