education has deprived him of a firm grasp and a deep knowledge of the medium of thought, if he is not a grammarian in the old sense of the term, his ideas, in most cases, are as accurately, though, perhaps, not as comprehensively, formed as those of his more fortunately circumstanced fellow-men. His principal difficulty consists, not in forming an idea or understanding it when formed, but in formulating and expressing it in, or abstracting it from, words. Of course it is not for a moment to be supposed