Immigration can have positive effects on innovation and productivity.
过去从未死去，它甚至从未过去。
当现有约束被改变，允许企业家从事新的生产活动形式时，经济增长就会发生。
出自汉·桓宽《盐铁论·险固》。这句话以“地利”与“人和”、“武力”与“文德”的对比，阐明了实行仁政对于治国安邦的重要性。
Don't be afraid of failure, be afraid that you don't even dare to try.
Technology itself has no value, its value lies in what problems it solves.
最崇高的行为是将他人置于自己之前。