事在人为

Explanation: That rely on people to do things. Under certain conditions, can make things hard to see how people's subjective. 　　Usage: The main predicate; for clause; to exhort people 　　Source: Ming Feng Meng, "Eastern Zhou Zhi": "Shizairenwei ear, she knows what rotten bones are." 　　Examples: As the saying goes ~, as long as the hard work you will certainly make a difference. Thesaurus:  The planning lies with man, the outcome with Heaven. / Man proposes, God disposes., man can conquer nature, Crowd Triumph