运动(motives)
       behind every daily activity lies a motive. generally speaking, those who have good motives may succeed both in their career and life. for example, prominent men like scientists usually have very clear motives in fields they are exploring. ordinary men like those young parents work hard to support families. students study diligently either to rank the top in their class or to be prepared for future success. so holding positive motives will contribute to people leading a healthy and useful life.
　　evil can also be a motive. the motive for obtaining money without hard work makes a pickpocket steal a purse. to fulfill his evil desire, a robber