If you haven’t read Proust, don’t worry. This lacuna in your cultural development you do not need to fill. On the other hand, if you have read all of A la Recherche du Temps Perdu, you should be very worried about yourself. As Proust very well knew, reading his work for as long as it takes is temps perdu, time wasted, time that would be better spent visiting a demented relative, meditating, walking the dog or learning ancient Greek.