When you don't make mistakes, be vigilant, because it means you have no progress, not learn something new.一旦你不再犯错，就该警惕，因这意味着你没有进步，没有学到新的东西。

Few things are impossible in themselves; and it is often for want of will, rather than of means, that man fails to succeed.事情很少有根本做不成的；其所以做不成，与其说是条件不够，不如说是由于决心不够。

I might say that success is won by three things: first, effort; second, more effort; third, still more effort.可以说成功要靠三件事才能赢得：努力、努力、再努力。