It is taken from Dr.Tyndall.

'_The mechanical philosopher, as such_,' he says, '_will never place a state of consciousness and a group of molecules in the position of mover and moved.

Observation proves them to interact; but in passing from one to the other, we meet a blank which the logic of deduction is unable to fill....

I lay bare unsparingly the initial difficulty of the materialist, and tell him that the facts of observation which he considers so simple are "almost as difficult to be seized as the idea of a soul." I go further, and say in effect: "If you abandon the interpretation of grosser minds, who image the soul as a Psyche which could be thrown out of the window--an entity which is usually occupied we know not how, among the molecules of the brain, but which on due occasion, such as the intrusion of a bullet, or the blow of a club, can fly away into other regions of space--if abandoning this heathen notion you approach the subject in the only way in which approach is possible--if you consent to make your soul a poetic rendering of a phenomenon which--as I have taken more pains than anyone else to show you--refuses the ordinary yoke of physical laws, then I, for one, would not object to this exercise of ideality." I say it strongly, but with good temper, that the theologian who hacks and scourges me for putting the matter in this light is guilty of black ingratitude._' Now if we examine this very typical passage, we shall see that in it are confused two questions which, as regards our own relation to them, are on a totally different footing.

One of these questions cannot be answered at all.