Although philosophy was made by men from long ago, it shouldn’t disregard their validity of being the foundations of philosophy. Anyone could’ve asked questions about how reality works. But no one bothered to really think about these questions till Aristotle and Plato started asking them. If it wasn’t for them, current society wouldn’t have an in-depth understanding of philosophy.
Some of the foundational ideas behind philosophy are that everything in the world operates according to its design. Plants make oxygen for living things, animals help keep the environment healthy, and humans cultivate and manage the earth. These are the things that people around the world accept as true despite its age. The philosophy made in the past is valid according to current society.
Asking questions about philosophy might not always be unanimous. Some religions believe there’s an afterlife while others believe life ends at death. Other people believe that there are other realities that exist while others believe only one exists. The truth is that these questions just haven’t been given a universal answer yet. There’s an answer somewhere, it just takes one individual to find it.