Page:An Essay on the Principle of Population (1798).djvu/246

, let us examine a few of the appearances from which the probable immortality of man is inferred.

To prove the power of the mind over the body, Mr Godwin observes, "How often do we find a piece of good news dissipating a distemper? How common is the remark that those accidents which are to the indolent a source of disease, are forgotten and extirpated in the busy and active? I walk twenty miles in an indolent and half determined temper, and am extremely fatigued. I walk twenty miles full of ardour, and with a motive that engrosses my soul, and I come in as fresh and as alert as when I began my journey. Emotion excited by some unexpected word, by a letter that is delivered to us, occasions the most extraordinary revolutions in our frame, accelerates the circulation, causes