True happiness arises, in the first place, from the enjoyment of one's self, and in the next, from the friendship and conversation of a few select companions.

You are the only real obstacle in your path to a fulfilling life.

The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.

子张问：“什么是五种美德？”孔子说：“君子对人民施加恩惠，却不耗费财用；使百姓劳苦，百姓却无怨言；自己有所欲求却不贪婪；安宁矜持却不骄横；威严却不凶猛。”……子张又说：“什么是四种恶行？”孔子说：“事先不经教育，犯了罪就杀头叫做肆虐；不先告诫便要求有成效，这叫粗暴；发布命令迟缓，却突然限期完成，这叫残害人；同是给人赏赐，却出手吝啬，这叫只进不出的财务衙门。

在5年的时间里，我们获得了一种精湛的编程语言。只有我们无法控制5年期限。