entiment was ever strongly developed
in me), to the firm conviction of the existence of God and of the
immortality of the soul. In my Journal I wrote that whilst standing in
the midst of the grandeur of a Brazilian forest, "it is not possible to
give an adequate idea of the higher feelings of wonder, admiration, and
devotion, which fill and elevate the mind." I well remember my
conviction that there is more in man than the mere breath of his body.
But now the grandest scenes would not cause any such convictions and
feelings to rise in my mind. It may be truly said that I am like a man
who has become color-blind, and the universal belief by men of the
existence of redness makes my present loss of perception of not the
least value as evidence. This argument would be a valid one if all men
of all races had the same inward conviction of the existence of one God;
but we know that this is very far from being the case. Therefore I
cannot see that such inward convictions and feelings are of any weight
as evidence of what really exists. The state of mind which grand scenes
formerly excited in me, and which was intimately connected with a belief
in God, did not essentially differ from that which is often called the
sense of sublimity; and however difficult it may be to explain the
genesis of this sense, it can hardly be advanced as an argument for the
existence of God, any more than the powerful though vague and similar
feelings excited by music.

With respect to immortality, nothing shows me [so clearly] how strong
and almost instinctive a belief it is, as the consideration of the view
now held by most physicists, namely, that the sun with all the planets
will in time grow too cold for life, unless indeed some great body
dashes into the sun, and thus gives it fresh life. Believing as I do
that man in the distant future will be a far more perfect creature than
he now is, it is an intolerable thought that he and all other sentient
beings are doomed to complete annihilation after such long-continued
slow progress. To those who fully admit the immortality of the human
soul, the destruction of our world will not appear so dreadful.

Another source of conviction in the existence of God, connected with the
reason, and not with the feelings, impresses me as having much more
weight. This follows from the extreme difficulty or rather impossibility
of conceiving this immense and wonderful universe, including man, with
his capacity of look