Peony and litchi are very popular in the world. But the ancients had such an evaluation of these two kinds of good products: flowers are definitely peony, but they are not true; The fruit is litchi, but it is not a famous flower.

This means that peony is the king of flowers, but it can't bear good fruit for people to taste. Litchi tastes the most delicious, but it can't produce good flowers for people to enjoy. Although simple, it illustrates a truth that things inevitably have shortcomings. People who know people and discuss the world can also look at it this way.

Su Shi's poem "Sinha Pagoda in Sizhou" said: "If you plow, it will be sunny, and those who go with the wind will complain. If everyone prays, creation should change every day. "

There is dialectics in this, and the opposite of contradiction is sharp. The cultivator wants timely rain to moisten the seedlings, but the reaper wants sunny weather. If the sails are downwind, the oncoming ships will complain. There is an old saying: "April is hard to do." Silkworm should be warm and wheat should be cold. It's going to rain, and the mulberry pickers are going to dry up. " Therefore, it is impossible to satisfy people from different directions and positions. The creator cannot please everyone, so it is natural to "answer blows with blows". Take whatever you want, and greed is not enough; In the world, we can't just "seek perfection and blame". In fact, it is difficult to be "complete" and "prepared". "Gold is not enough, no one is perfect", people always say the wrong thing and do the wrong thing. People with merit are not necessarily blameless, and people with yoga are not necessarily flawless. We should look at the problem objectively and comprehensively, which conforms to the principle of "seeking truth from facts"

We still have to look at the problem from the opposite side, just as Su Shi said in his poem, if we don't expect the creator to "change every day", naturally we can't dream of "praying for blessings"; "Change every day" and "pray for whatever you want" are genuine idealism and metaphysics, which are fundamentally opposite to the dialectical world view. Only by studying the dialectical view of the universe seriously can we really solve the problems we want to solve.