For instance, if the facts in question are numbers or lines or special
branches of science, such as physics, zoology, botany, anatomy, or
corrupt passages in ancient authors, or undecipherable inscriptions,
written, it may be, in some unknown alphabet, or obscure points
in history; the kind of fame that may be obtained by correctly
manipulating such facts will not extend much beyond those who make a
study of them--a small number of persons, most of whom live retired
lives and are envious of others who become famous in their special
branch of knowledge.

But if the facts be such as are known to everyone, for example, the
fundamental characteristics of the human mind or the human heart,
which are shared by all alike; or the great physical agencies which
are constantly in operation before our eyes, or the general course of
natural laws; the kind of fame which is to be won by spreading the
light of a new and manifestly true theory in regard to them, is such
as in time will extend almost all over the civilized world: for if the
facts be such as everyone can grasp, the theory also will be generally
intelligible. But the extent of the fame will depend upon the
difficulties overcome; and the more generally known the facts are, the
harder it will be to form a theory that shall be both new and true:
because a great many heads will have been occupied with them, and
there will be little or no possibility of saying anything that has not
been said before.

On the other hand, facts which are not accessible to everybody, and
can be got at only after much difficulty and labor, nearly
always admit of new combinations and theories; so that, if sound
understanding and judgment are brought to bear upon them--qualities
which do not involve very high intellectual power--a man may easily be
so fortunate as to light upon some new theory in regard to them which
shall be also true. But fame won on such paths does not extend much
beyond those who possess a knowledge of the facts in question. To
solve problems of this sort requires, no doubt, a great ideal of study
and labor, if only to get at the facts; whilst on the path where the
greatest and most widespread fame is to be won, the facts may be
grasped without any labor at all. But just in proportion as less labor
is necessary, more talent or genius is required; and between such
qualities and the drudgery of research no comparison is possible, in
respect either of their intrinsic value, or of