人学不仅是以人为研究主体的哲学，而且是以人为研究客体（对象）的哲学。人不是任何一种片面的存在物，而是一种全面的存在物。换句话说，人是生命的、文化的或社会的存在物。但人学却在关注人的社会或文化等等的属性时，忽略了人的自然生命的属性，或者将这种属性交付给有关人的自然科学的研究。而哲学以及人文科学的研究则忘却了人的自然生命的属性。从而，灰色的理论变得更加灰色了。“生命人学”的提出就是要对抗这一理论现实 Humanism is not only the philosophy of human-centered research, but also the philosophy of human-based research of objects (objects). Man is not a one-sided existence, but an all-encompassing being. In other words, people are living, cultural or social beings. However, human studies, however, have neglected the nature of human beings’ natural life or concerned with the study of the natural sciences of human beings when they focus on the attributes of human society or culture. However, the study of philosophy and humanities has forgotten the nature of human beings’ natural life. Thus, the gray theory becomes more gray. “Life science” is proposed to combat this theoretical reality