天外有天 meaning in English

there is no limit in the universe -- knowledge is infinite.; however strong you are, there is always someone stronger

Oslash ; the first deep space flights reveal numerous planets capable of supporting life
首次深度空间飞行，众人方知天外有天，人外有人。
The building lord , is you let me comprehend the words " someone outside the person , day outside have day " profoundly
楼主，是你让我深深地理解了“人外有人，天外有天”这句话。
Recently i ' m busy on my farm . let alone whether it ' s in song or ming dynasty , it ' s a good blade . if you have something good , please post
近段时间忙于农活梳于刀剑，上来一看热闹哈，不管看宋看明实是好刃，天外有天哪，还有什么家什尽管贴上。
Meanwhile we also found that we are dropping behind and the stronger ones . then we produced stronger and stronger dissatisfaction and aggressive mind
同时，也看到了自己的落后，看到了天外有天,因此而产生了愈来愈强烈的不满现状、积极进取的心理。