It should be a philosophical principle! The German philosopher Leibniz said that there are no two identical leaves in the world. First of all, this sentence is one-sided, 1, things are related, and the same thing has the same nature, which is * * *. 2. Every concrete thing has its special attributes, which are characteristics. 3. The whole and the individual are contradictory and interrelated. 4. Look at the problem from a developmental perspective. Things are constantly developing and changing. 5, the difference between phenomenon and essence, 6, the universality and particularity of contradiction. From the universality of contradiction, two leaves have the same nature, which is a kind of * * * with the same main contradiction. From the particularity of contradiction, it is a kind of personality. Because of the particularity of contradiction, there is also particularity in ordinary villages, so there are no two identical leaves.

Please accept it, thank you!