How about reason as a means? Name any concept that is NOT of human origin. The proof burden would be then where it belongs; on the part of the propagator.
The making of choices to advance survival and perpetuation didn't begin with us. What proportion of such functions are mental vs. instinctual is almost impossible to determine in species with which we cannot share or exchange ideas. Perhaps it could have been more accurately expressed as thought system instead of concept.
@Antifred They show love and love and life manifest inseparably. It takes human societies to separate and qualify them. Emotion still isn't a system of thought, such as a 'religion'; or as I prefer calling them, theologies.
It might be a matter of definition. We can, and have, proven that all religious texts etc. were composed and written by people (coincidentally most of these people were men) and in this sense were man made. Almost all claim that an invisible, undetectable, and immaterial being told them what or about what to write. Pastafarians, on the other hand, admit that they just made it up, hence are the only provably honest religion.