Everyone tries to achieve success in his/her career。 But one finally attains his aim while other fails。 Why? The one continues his cause to the end through long period of hard struggles， but the other is easily disappointed and stops halfway。
Strong will， perseverance and diligence are the three essentials of success。 A man of strong will and perseverance always has an inflexible spirit。 He sticks to his cause no matter how tough it might be。
Dr。 Sun Yat-sen was such a man。 Many of his attempts failed， but he held to his purpose with firmness and finally succeeded in overthrowing the Qing Dynasty。
Diligence means steadiness in one's work and study。 Su Qin stabbed himself in order to keep attentive to studies。 Mark often worked 15 hours a day。
Life is short and we have too much to do。 Without diligence no one can achieve anything。
I believe that where there is a will there is a way， and that success belongs to those who suffer long years of patient toil and constant efforts。