Various, Popular Science Monthly (1899)
“ We, the undersigned, offer you our cordial congratulations upon the completion of your System of Synthetic Philosophy. Not all of us agreeing in equal measure with its conclusions, we are all at one in our estimate of the great intellectual powers it exhibits and of the immense effect it has produced in the history of thought; nor are we less impressed by the high moral qualities which have enabled you to concentrate those powers for so many years upon a purpose worthy of them, and, in spite of all obstacles, to carry out so vast a design. ”
