Iain Pears said this quote
“ Manlius ... took care in his invitations, actively sought to exclude from his circle crude and vulgar men like Caius Valerius. But they were all around; it was Manlius who lived in a dream world, and his bubble of civility was becoming smaller and smaller. Caius Valerius, powerful member of a powerful family, had never even heard of Plato. A hundred, even fifty years before, such an absurdity would have been inconceivable. Now it was surprising if such a man did know anything of philosophy, and even if it was explained, he would not wish to understand. ”