There is nothing outside the heart, and it is unreasonable outside the heart, which was put forward by Wang Yangming.
"Nothing outside the heart is unreasonable outside the heart" is a psychological thought put forward by Wang Yangming (Wang Shouren), a philosopher in China in the Ming Dynasty. This concept not only puts forward the understanding of the universe, but also provides a way to know the truth of things, that is, just go back and explore your own mind and conscience.
Wang Yangming's thought was developed on the basis of "mind is reason" and "the universe is my heart and my heart is the universe" put forward by Lu Jiuyuan. In Wang Yangming's view, people's hearts are the same as things, things are unhappy, and hearts cannot be separated from things.
His "heart" refers not only to the highest noumenon, such as "the heart is the Tao, and the Tao is the sky", but also to personal moral consciousness, such as "there is only one heart, which is benevolent in terms of all its sorrows and joys, righteous in terms of its appropriateness, and rational in terms of its organization". This is more extensive than Lu Jiuyuan's personal intention.
Wang Yangming's emphasis on the core of "nothing outside the heart" is still aimed at the disadvantages of his time, that is, scholars lack the ambition of saints and study only for the word "fame and fortune" He believes that this kind of problem arises because the world is distracted and divided into two, taking selfishness as the "reason", blindly looking for reasons from things when reading, and forgetting to look back at your heart.
Therefore, Wang Yangming's mind thought aims to emphasize the importance of people's moral consciousness and introspection, and believes that only through in-depth observation and understanding of self can we achieve a true moral realm and a correct understanding of things.