哈佛大学曾有个目标对人生影响的跟踪调查。研究对象是一群智力、学历、环境等条件差不多的年轻人。结果显示:27%的人没有人生目标,25年后几乎都生活在社会最底层;60%的人目标模糊,25年后几乎都生活在社会的中下层;10%的人有清晰但比较短期的目标,25年后大都生活在社会的中上层,成为各行各业不可或缺的专业人士;3%的人有清晰且长期的目 Harvard University had a target tracking the impact of life. The research object is a group of young people with similar intelligence, education, environment and other conditions. The results showed that: 27% of people do not have the goal of life, 25 years after almost all living in the bottom of society; 60% of people ambiguous goals, almost 25 years after living in the lower middle class; 10% of people have a clear but relatively short period 25 years later, most of them live in the middle and upper class of society and become indispensable professionals in all walks of life; 3% have clear and long-term goals