On his arrival he was in a very exalted state of over-excitation; he was the greatest of men in every mental capacity and acquirement; all Philosophers, Poets, Painters, and Linguists, that had been, or were in existence, were nothing in comparison with himself, nor were their works to be compared with those he intended to execute, and the basis of which he had already formed in his own conception. Nothing could exceed the vain and pompous displays of his talents and acquirements; and it is impossible to conceive, from the difficulty he had to support his pretensions, with the defects under which he then laboured, what a very painful and ridiculous exhibition it produced. Still his vanity and exaggerated estimate of himself, combined with his ineffable contempt for others, remained unchecked. One feature was very striking; he possessed considerable powers of imitation, in the exercise of which he took great delight, and in pouring forth his contempt against others, he did it with the attitude and voice of Kemble; it was almost impossible not to feel the force of his manner, and against myself he was particularly severe, and his poignant expressions of contempt and indignity were most provoking and overwhelming. When, however, a change of state occurred, I felt so interested for his trembling and doubtful situation, that I had even a bed put up for him in my own room. I had always some case of this kind about me, and no one can conceive the sacrifice of health and comfort it cost me. This case, as well as the last described, may perhaps be detailed more particularly in their proper place, to illustrate a general principle, of far more importance than even moral treatment. And even in moral treatment it will appear how important this general principle is, to enable us to perceive how we may best counteract the effects which may have arisen from the operation of baneful causes: for by it we shall be able to trace errors to their source, and without this, we can never counteract and cure them. And this we can only do with certainty, by possessing correct views of the origin, nature, and constitution of the human mind, and of the correspondence which exists between physical effects, and mental or spiritual causes: out of which views this general principle will be educed, and it will be found to be of universal application. In this case it is evident, a system of moral and intellectual treatment was required, in order to counteract and cure the effects which had arisen out of the soil in which he had existed, very different from that which was necessary for the previous case; and it is equally evident, without such knowledge, it is more than probable that neither of these minds would ever have been restored to their balance, or right state.