The power of abstraction is that it allows us to ignore details that are not relevant to the task at hand.

树木有根则繁茂，根腐则树枯萎；鱼有水才能活，水干涸了鱼则必死；灯有油才光亮，油尽则灯灭。人有真精神，保护则长寿，戕害则必死。

War therefore is an act of violence to compel our opponent to fulfill our will.

成功不是偶然的，它需要付出很多努力和汗水。

生命短暂，让它变得甜蜜取决于你。