“ Hope cannot be said to exist, nor can it be said not to exist. It is just like roads across the earth. For actually the earth had no roads to begin with, but when many men pass one way, a road is made. 希望是本无所谓有，无所谓无的。这正如地上的路；其实地上本没有路，走的人多了，也便成了路。 Lu Xun 鲁迅
“ Know the enemy and know yourself; in a hundred battles, you will never be defeated. 知彼知己者，百战不殆。 Sun Tzu 孙子兵法