Philosophy is - phílos sophía - the love of knowledge, yes. The pursuit of truth, for sure. That all resonates with me, it has my name written all over it. But what really caught my attention was how - in my eyes - it also equates to a “way of life.” Your philosophy is how you relate to the world, what is valuable for you, what is ethical for you, what “good” means in your perception. So everybody has “a philosophy,” even if they don’t acknowledge it or perhaps don’t have a particularly intimate relationship with the aforementioned Sophia.
I think it all relates a lot to having a purpose. And similarly to when you don’t have a purpose of your own you will inevitably end up working towards someone else’s; if you don’t have or are unable to articulate a philosophy of your own you will invariably inherit or be subject to adopting somebody else’s.