Different people have different opinions, and everyone pays attention to different things. For the time being, use "rose" as a metaphor for success and "thorn" as a metaphor for obstacles to success, trying to show that pessimists see risks, attach great importance to obstacles on the road to success and hold a pessimistic attitude towards beautiful success. Optimists, on the other hand, pay more attention to the hope of success and are full of confidence in the obstacles on the way and think they can overcome them.

Both have their own advantages, just like Qian Zhongshu's famous saying about eating grapes: there are only two kinds of people in the world. For example, when you get a bunch of grapes, one person chooses the good ones to eat, and the other person saves the best ones for last. The first person should be optimistic as usual, because every grape he eats is the best grape left over; The second person should be pessimistic, because every grape he eats is the worst grape left. But the opposite is true, because the second kind of people still have hope, and the first kind of people only have memories.