ey may contain), and essays on all sorts
of subjects interest me as much as ever they did. My mind seems to
have become a kind of machine for grinding general laws out of large
collections of facts, but why this should have caused the atrophy of
that part of the brain alone, on which the higher tastes depend, I
cannot conceive. A man with a mind more highly organised or better
constituted than mine, would not, I suppose, have thus suffered; and
if I had to live my life again, I would have made a rule to read some
poetry and listen to some music at least once every week; for perhaps
the parts of my brain now atrophied would thus have been kept active
through use. The loss of these tastes is a loss of happiness, and may
possibly be injurious to the intellect, and more probably to the moral
character, by enfeebling the emotional part of our nature.

My books have sold largely in England, have been translated into many
languages, and passed through several editions in foreign countries. I
have heard it said that the success of a work abroad is the best test
of its enduring value. I doubt whether this is at all trustworthy; but
judged by this standard my name ought to last for a few years. Therefore
it may be worth while to try to analyse the mental qualities and the
conditions on which my success has depended; though I am aware that no
man can do this correctly.

I have no great quickness of apprehension or wit which is so remarkable
in some clever men, for instance, Huxley. I am therefore a poor critic:
a paper or book, when first read, generally excites my admiration,
and it is only after considerable reflection that I perceive the weak
points. My power to follow a long and purely abstract train of thought
is very limited; and therefore I could never have succeeded with
metaphysics or mathematics. My memory is extensive, yet hazy: it
suffices to make me cautious by vaguely telling me that I have observed
or read something opposed to the conclusion which I am drawing, or
on the other hand in favour of it; and after a time I can generally
recollect where to search for my authority. So poor in one sense is my
memory, that I have never been able to remember for more than a few days
a single date or a line of poetry.

Some of my critics have said, "Oh, he is a good observer, but he has
no power of reasoning!" I do not think that this can be true, for the
'Origin of Species' is one long argument from the beginning to the end,