意指任何收获都需要付出相应的代价。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

历史既没有地球的古老，也没有孩子的纯真；它始终是人类激情与错误的产物。

科学是协作的交响乐，而非独奏。