Machinery and labor-saving devices are only valuable as they serve to reduce the cost of manufacture.
没有听到的不如听到的,听到的不如见到的,见到的不如了解到的,了解到的不如去实行,学问到了实行就达到了极点。
I'm not a girl who hides her light. I'm a girl who shines.
当没有人相信你时,你必须相信自己。