It was said by German philosopher Leibniz.

The German philosopher Leibniz once said: "There are no two identical leaves in the world." Species have their own diversity, and people also have various styles. We cannot force everyone to be the same. Yes, if you want to be treated kindly, be kind to others.

Gottfried Wilhelm Leibniz, a German philosopher and mathematician, was a rare generalist in history and was known as the Aristotle of the seventeenth century. He himself is a lawyer who often travels to major towns. Many of his formulas are completed on bumpy carriages. He also claims to have the noble status of a baron. ?

Extended information:

Leibniz occupies an important position in the history of mathematics and philosophy. In mathematics, he and Newton independently discovered calculus, and the mathematical symbols of calculus he used are more widely used. The symbols invented by Leibniz are generally considered to be more comprehensive and have a wider range of applications. Leibniz also invented and perfected binary.

In philosophy, Leibniz is the most famous for his optimism; he believed that "our universe is, in a sense, the best one created by God." He, Descartes, and Baruch Spinoza are considered the three greatest rationalist philosophers of the seventeenth century.

While Leibniz’s work in philosophy foresaw the birth of modern logic and analytic philosophy, it was also obviously deeply influenced by the tradition of scholastic philosophy, making more use of first principles or transcendental principles. Definitions rather than experimental evidence to derive conclusions.

Baidu Encyclopedia-German philosopher Leibniz