What cheer can the religious sentiment yield, when that is suspected to be secretly dependent on the seasons of the year and the state of the blood? I knew a witty physician who found the creed in the biliary duct, and used to affirm that if there was disease in the liver, the man became a Calvinist, and if that organ was sound, he became a Unitarian. Very mortifying is the reluctant experience that some unfriendly excess or imbecility neutralizes the promise of genius. We see young men who owe us a new world, so readily and lavishly they promise, but they never acquit the debt; they die young and dodge the account; or if they live they lose themselves in the crowd.
Temperament also enters fully into the system of illusions and shuts us in a prison of glass which we cannot see. There is an optical illusion about every person we meet. In truth they are all creatures of given temperament, which will appear in a given character, whose boundaries they will never pass: but we look at them, they seem alive, and we presume there is impulse in them. In the moment it seems impulse; in the year, in the lifetime, it turns out to be a certain uniform tune which the revolving barrel of the music-box must play. Men resist the conclusion in the morning, but adopt it as the evening wears on, that temper prevails over everything of time, place, and condition, and is inconsumable in the flames of religion. Some modifications the moral sentiment avails to impose, but the individual texture holds its dominion, if not to bias the moral judgments, yet to fix the measure of activity and of enjoyment.
I thus express the law as it is read from the platform of ordinary life, but must not leave it without noticing the capital exception. For temperament is a power which no man willingly hears anyone praise but himself. On the platform of physics we cannot resist the contracting influences of so-called science. Temperament puts all divinity to rout. I know the mental proclivity of physicians. I hear the chuckle of the phrenologists. Theoretic kidnappers and slave-drivers, they esteem each