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.
(..) while your father lived... ...give twenty, forty, a hundred crowns a piece for his picture in little There is something in this more than natural, if philosophy could find it out Oh Horatio, thou an as just a man as ere my conversation coped withal - My dear lord - Nay, do not think I flatter (..)2015 Hamlet
(..) Once more remove, good friends - Oh day and night, but this is wondrous strange - And therefore as a stranger give it welcome There are more things in heaven and earth, Horatio, than are dreamt of in our philosophy - But come, here as before, swear - Swear Rest, rest, perturbed spirit (..)2015 Hamlet