Success is built upon tremendous [tri'mendəs] amount of study,practice and devotion.In addition,having a definite goal and knowing what to do next become more important.
In fact,researchers have evidence that an intrinsic passion for one’s work is a key factor for success.
According to my own experience,during our university years,having a good study habit is also important.Higber marks can’t be gained by putting in more hours.Efficiency in study can help us learn more.
If I must mean only one,i will say it is devotion.