When you're young, you don't really know quite what you're aiming at. You're very impulsive and acting on impulse, which is very important and valuable. But you're kind of swimming in a blind sea. When you get older, you have more of a sense of direction.
当你年轻的时候，你并不十分清楚自己的目标是什么。你很冲动，会冲动行事，这很重要，也很有价值。但你是在盲海中游泳。当你长大后，你会有更多的方向感。