People's emotions are all in their hearts. Because love is a Chinese word, it means love and happy feelings between men and women. The premise of love is that there is someone in your heart, so people's love is in your heart. Man is a species of primate, primitive man and genus in biology. It can be defined from the biological, spiritual and cultural levels, or the combination of these levels. Biologically speaking, people are divided into primitive people, primitive people and race.