I think it is often easier to make progress on mega-ambitious dreams. Since no one else is crazy enough to do it, you have little competition. In fact, there are so few people this crazy that I feel like I know them all by first name.
The first idea a child gets is the most important one.
知道是贤人而不举荐,很危险;知道是善事而不表彰,很危险;知道他能干而不任用,很危险。