For any one of us might say, that although in words he is not able to meet you at each step of the argument, he sees as a fact that the votaries of philosophy, when they carry on the study, not only in youth as a part of education, but as the pursuit of their maturer years, most of them become strange monsters, and that those who may be considered the best of them are made useless to the world by the very study which you extol.