Sadly nowadays philosophy is seen like a pure theoretic field but since the beginning it was both a system (theoretic) and a way of life (practical- applying th

Sadly nowadays philosophy is seen like a pure theoretic field but since the beginning it was both a system (theoretic) and a way of life (practical- applying the theory). Socrates already criticized sophists. They were payed to teach philosophy (and rhetoric, logic etc.) but didn't apply philosophy to themselves. Platonism, Epicureanism, Stoicism were all both a system and a way of life. This distinction disappeared, but not totally, with Christianity. Christianity was seen as the ultimate philosophy, bringing a system and a way of life together and making it popular as the ultimate, definitive and right system. Whereas in the ancient Greece philosophy and religion were both side by side in the live of people, with Christianity they were mixed together. Only the theoretic foundations of philosophy remained and were taught, since there were not needs anymore for a way of life. Lately some thinkers came back to this primary vision, like Nietzsche who set up a system but wanted to apply it to human begins, hopping to change them. However because of these evolutions, philosophy is often seen like a pure theoretical system.