Think about falling from the sky, is it the control of things and animals, the praise of falling from the sky, or the control of fate and use it? Whose famous saying is it? Which one does it belong to? Think under the big sky. What things and animals are made of? Praise it from heaven and use it to control your destiny. Language "Xunzi Tian Lun".

At the end of the Warring States Period in China, Xunzi's important proposition about the relationship between heaven and man can be found in Xunzi's Theory of Heaven. Xunzi understood "destiny" as an inevitable natural law, and thought that "praising it from heaven is better than using it", that is, we should not passively obey nature, but actively control and use it.

Xunzi's thought of "controlling the destiny and using it" was summed up from the debate on the relationship between heaven and man in the pre-Qin period. Laozi and Zhuangzi of Taoism exaggerated the inevitability of natural laws, completely denied people's subjective initiative, and reached the conclusion of negative inaction. Confucius and Mencius of Confucianism affirmed that Heaven has the will and can dominate social personnel. In order to overcome these two erroneous tendencies, Xunzi put forward the dialectical view of "the distinction between heaven and man" for the first time, and clearly divided "duty" and "rule by man", that is, the boundary between heaven and man. He pointed out that "Heaven never shuts one door but he opens another", and the law of movement and change of everything in heaven and earth is neither purposeful nor subject to anyone's subjective will. He also believes that "heaven has its time, land has its wealth, and people have their governance." Humans can use nature and serve everything according to their understanding of weather and location, which is called "being able to participate". This conscious initiative of human beings to participate in the world change makes people change from "fearing fate" to "controlling fate" in practice and become masters of nature.