Philosphy is useful only when it is applied.
It's a good median to educate yourself on concepts, but to nominalize those concepts into a matter of 'fact', is to disregard the intention of ever knowing the 'truth' in the first place.
Philosophy then must expose what it is in what it does. It is a process after all, when done; that of philosophizing.
So, then, It must be clear that philosophy has more to do with the structural and conceptual nature of our ability to consider the questions, more than the questions themselves. In such, logic and analysis become key, and pragmatism becomes purpose.
For what purpose do you seek to know the meaning of 'love', 'virtue', ect. . .
Well, it's hopefully to know how to apply such concept to some other concepts, in the concept-chain that manifests our logic-space, which is product of our language and mental capacities, which arise with forms and functions, ect. . . .
Science is concerned with answers to carefully structured questions. Answers which are never accepted as 'truth', but instead, when more often observed or validated, prevailing theory. It's obsessed with the process of obtaining the information, as 'science' is systematic approach of conducting 'research' and observation.
IN this, science became separate from philosophy when the formula for science existed as only systemic observational approaches following a set of organized methods. Philosophy is not a set of organized methods, it's a means of untangling or making sense of the methods we use, and apply to makes sense of our conditions and ourselves on a phenomenal level. You cant test the phenomenal experiences, with scientific processes, as you can only test the material interactions of previous existence in time, with scientific enterprise.