On Mr. Spencer's Formula of Evolution: As an Exhaustive Statement of the Changes of the Universe:

There must be scores and hundreds of educated minds to whom the readiest illustration of the "Unknowable" would be Mr. Herbert Spencer's metaphysical conclusions. Mr. Guthrie's estimate of the reasoning on which they rest is thus plaintively stated: - "The book is like the process of evolution itself; we never know where we are; we seem to slip from one thing into another so easily, that in the transmutation and connection of words we often have a difficulty in making out our position." He ...