Categories Rene Descartes It is not enough to have a good mind; the main thing is to use it well. Post author By quotegeek Post date May 16, 2012 No Comments on It is not enough to have a good mind; the main thing is to use it well. It is not enough to have a good mind; the main thing is to use it well. → I’m a Sagittarius, which probably tells you way more than you need to know. Leave a Reply Cancel replyYou must be logged in to post a comment.