To Conquer All, One Must First Conquer Oneself

All individuals who have achieved great accomplishments are exceptionally self-disciplined. Whether in worldly affairs or on the Buddhist path, it is through self-discipline that one attains achievements, transcends oneself, and realizes the supreme attainment of selflessness, which surpasses all and enables the accomplishment of all endeavors. Conversely, those who cling to self are constantly calculating over trivial matters, narrow-minded, tolerant only of themselves but not others, making it difficult to achieve any undertaking. As long as everyone works selflessly and without ego solely for the sake of Buddhism, the merit and virtue accrued are exceedingly vast. Through such merit and virtue, one will attain great wisdom and liberation, which cannot be compared to those who do not participate in propagating the Dharma. 

It is entirely possible for everyone to struggle against their own selfishness, to struggle against their own greed, to struggle against their own hatred, to struggle against their own jealousy, to struggle against their own mind of self-righteousness and fault-finding towards others, to struggle against their own mind of seeking power and profit. In short, it is entirely acceptable to struggle against oneself, to fight against one's own defilements. However, one should not struggle against others, nor contend with others. When encountering matters of fame and gain, one can step aside; do not step forward to contend, do not engage in fighting, seizing, or stealing, and do not harm the interests of others. One should only bear responsibilities, not contend for rights.