In this "must"--"it must follow"--lies my objection to the logic of science.
The arguments proceed from premises to conclusions, and end with the
assumption "it therefore follows." But I say that, however carefully the
argument be built up, even though apparently flawless, there is no such
thing at present as "it must follow." Human ideas at present naturally form
a plan, and a balanced design; they might be indicated by a geometrical
figure, an upright straight line in the centre, and branching from that
straight line curves on either hand exactly equal to each other. In drawing
that is how we are taught, to balance the outline or curves on one side with
the curves on the other. In nature and in fact there is no such thing. The
stem of a tree represents the upright line, but the branches do not balance;
those on one side are larger or longer than those on the other. Nothing is
straight, but all things curved, crooked, and unequal.

The human body is the most remarkable instance of inequality,
lack of balance, and want of plan. The exterior is beautiful in
its lines, but the two hands, the two feet, the two sides of the
face, the two sides of the profile, are not precisely equal.
The very nails of the fingers are set ajar, as it were, to
the lines of the hand, and not quite straight. Examination of the interior
organs shows a total absence of balance. The heart is not in the centre, nor
do the organs correspond in any way. The viscera are wholly opposed to plan.
Coming, lastly, to the bones, these have no humanity, as it were, of shape;
they
are neither round nor square; the first sight of them causes a sense of
horror, so extra-human are they in shape; there is no balance of design in
them. These are very brief examples, but the whole universe, so far as it
can be investigated, is equally unequal. No straight line runs through it,
with balanced
curves each side.