_."

[1] Address delivered to the Unitarian Ministers' Institute at
Princeton, Mass., 1881, and printed in the Unitarian Review for October
of that year.

[2] See some Remarks on Spencer's Definition of Mind, in the Journal of
Speculative Philosophy for January, 1878.

[3] "No amount of failure in the attempt to subject the world of
sensible experience to a thorough-going system of conceptions, and to
bring all happenings back to cases of immutably valid law, is able to
shake our faith in the rightness of our principles. We hold fast to
our demand that even the greatest apparent confusion must sooner or
later solve itself in transparent formulas. We begin the work ever
afresh; and, refusing to believe that nature will permanently withhold
the reward of our exertions, think rather that we have hitherto only
failed to push them in the right direction. And all this pertinacity
flows from a conviction that we have no right to renounce the
fulfilment of our task. What, in short sustains the courage of
investigators is the force of obligation of an ethical idea."
(Sigwart: Logik, bd. ii., p. 23.)

This is a true account of the spirit of science. Does it essentially
differ from the spirit of religion? And is any one entitled to say in
advance, that, while the one form of faith shall be crowned with
success, the other is certainly doomed to fail?

[4] Concerning the transformation of the given order into the order of
conception, see S. H. Hodgson, The Philosophy of Reflection, chap. v.;
H. Lotze, Logik, sects. 342-351; C. Sigwart, Logik, sects. 60-63, 105.

[5] Haeckel has recently (Der Monismus, 1893, p. 37) proposed the
Cosmic Ether as a divinity fitted to reconcile science with theistic
faith.

[6] See the admirably original "Illustrations of the Logic of Science,"
by C. S. Peirce, especially the second paper, "How to make our Thoughts
clear," in the Popular Science Monthly for January, 1878.

[7] On this subject, see the preceding Essay.

[8] "As soon as it is recognized that our thought, as logic deals with
it, reposes on our _will to think_, the primacy of the will, even in
the theoretical sphere, must be conceded; and the last of
presuppositions is not merely [Kant's] that 'I think' must accompany
all my representations, but also that 'I will' must dominate all my
thinking." (Sigwart; Logik, ll. 25.)

[9] As our ancestors said, _Fiat justitia, pereat mundus_, so we, who
do not believe in justice o