Reflection theory refers to the principle of epistemology that insists that the essence of knowledge is the reflection of the human brain on the objective world, that is, the idea is a theory that reflects existence. According to the above definitions, which of the following is not a reflection theory? ['"Being is being perceived".', '"From things to feelings and thoughts".', '"Everyone knows the nature of man, and the truth of things".', '"There is no respondent without a respondent".']