I've had to learn to fight all my life - got to learn to keep smiling. If you smile, things will work out.
我们必须通过文学来理解我们的历史。
自然规律是亘古不变的,不会因尧的仁德而存在,不会因桀的暴虐而消亡。
Mathematics is the art of giving the same name to different things.
在向埃及的远征中,拿破仑下达过这样的一个命令。