His 'philosophy of life' [=his way of living] is to treat people as he would like to be treated.
My 'philosophy' is to live and let live. [=let other people live the way they want to]
Her main cooking 'philosophy' is to use only fresh ingredients.
(..) before bedtime. - I can see that. - I'd like to show you first-hand. All I want is a serious answer. Okay, here's serious. My old man had a philosophy, "Peace means having a bigger stick than the other guy." That's a great line coming from the guy selling the sticks. (..)2008 Iron Man