"Abstract thought" Quotes from Famous Books
... and concentration of it on a single work, is the normal and healthful condition of the human faculties, even for speculative uses. I believe that what is gained in special development by this concentration, is lost in the capacity of the mind for the other purposes of life; and even in abstract thought, it is my decided opinion that the mind does more by frequently returning to a difficult problem, than by sticking to it without interruption. For the purposes, at all events, of practice, from its highest to its humblest departments, the capacity of passing promptly ... — The Subjection of Women • John Stuart Mill |