CAMBRIDGE, Mar. 18, 1873.
... [William] gets on greatly with his teaching; his students—fifty-seven of them—are elated with their luck in having him, and I feel sure he will have next year a still larger number by his fame. He came in the other afternoon while I was sitting alone, and after walking the floor in an animated way for a moment, broke out: "Bless my soul, what a difference between me as I am now and as I was last spring at this time! Then so hypochondriacal"—he used that word, though perhaps less in substance than form—"and now with my mind so cleared up and restored to sanity. It's the difference between death and life."
He had a great effusion. I was afraid of interfering with it, or possibly checking it, but I ventured to ask what especially in his opinion had produced the change. He said several things: the reading of Renouvier (particularly his vindication of the freedom of the will) and of Wordsworth, whom he has been feeding on now for a good while; but more than anything else, his having given up the notion that all mental disorder requires to have a physical basis. This had become perfectly untrue to him. He saw that the mind does act irrespectively of material coercion, and could be dealt with therefore at first hand, and this was health to his bones. It was a splendid declaration, and though I had known from unerring signs of the fact of the change, I never had been more delighted than by hearing of it so unreservedly from his own lips. He has been shaking off his respect for men of mere science as such, and is even more universal and impartial in his mental judgments than I have known him before....
James's first Harvard appointment had been for one year only. In the spring of 1873 the question of its renewal on somewhat different terms came up. President Eliot informed him that the College wished some one man to give the instruction which he and Dr. Dwight had shared between them, and offered him the whole course, including the anatomy.
It cost him "some perplexity to make the decision." He thought he saw that such an instructorship "might easily grow into a permanent biological appointment, to succeed Wyman, perhaps." At first he resolved "to fight it out on the line of mental science," feeling that "with such arrears of lost time behind [him] and such curtailed power of work," he could no longer "afford to make so considerable an expedition into the field of anatomy." But when he then considered himself as a possible future teacher of philosophy, he was overwhelmed by a feeling which he recorded on a page of his diary: "Philosophical activity as a business is not normal for most men, and not for me.... To make the form of all possible thought the prevailing matter of one's thought breeds hypochondria. Of course my deepest interest will, as ever, lie with the most general problems. But ... my strongest moral and intellectual craving is for some stable reality to lean upon.... That gets reality for us in which we place our responsibility, and the concrete facts in which a biologist's responsibilities lie form a fixed basis from which to aspire as much as he pleases to the mastery of universal questions when the gallant mood is on him; and a basis too upon which he can passively float and tide over times of weakness and depression, trusting all the while blindly in the beneficence of nature's forces, and the return of higher opportunities." Accordingly he determined to give himself to biology, reporting to his brother Henry, who was at that time in Europe, "I am not a strong enough man to choose the other and nobler lot in life, but I can in a less penetrating way work out a philosophy in the midst of the other duties...."
As the summer went on, he still had misgivings that he would not be strong enough to prepare and conduct the laboratory demonstrations necessary for a large class in comparative anatomy and physiology. He saw that his first year of teaching had been "of great moral service to him," but thought that in other ways the strain and fatigue had been a brake upon the rate of his wished-for improvement. He therefore made up his mind to postpone the instructorship for a year and go abroad once more.
These hesitations, and a few months in Europe, marked the end of the period of morbid depression through which the reader has been following him. He returned to America eager for work.
Meanwhile parts of four letters written while he was abroad may be given.
To his Family.
ON BOARD S.S. SPAIN, Oct. 17, 1873.