In the ancient Chinese story, Yu Gong could move mountains with his strong will and hard work, why can't we?

I am sure that no one can say that the whole is to carry forward the spirit of Yu Gong Yi-Shan, the next generation and to future generations to eat, also said too many incomplete Why?

And if I have the gift of prophecy and know all mysteries and all knowledge, and if I have all faith so as to remove mountains, but do not have love, I am nothing.