and which we accept as a "given," to be exploited and carried out in its
consequences. Indeed, we need not betake ourselves to science to have an
illustration of this method of procedure. In everyday life men have
maxims by which they judge of the probable actions of their fellow-men
and in the light of which they direct their dealings with them. Such
maxims as that men may be counted upon to consult their own interests
have certainly not been adopted independently of an experience of what,
on particular occasions, men have shown themselves to be. But, once
adopted, they may be treated as, for practical purposes, unquestionable;
men are concerned to apply them, not to substantiate them. In so far, men
reason from them deductively and pass from the general rule to the
particular instance.

16. THE AUTHORITY OF THE "GIVEN."--Obviously the "given," in the sense
indicated, may possess, in certain cases, a very high degree of
authority, and, in others, a very low degree.

In the case of the mathematical truth referred to above, men do not, in
fact, find it necessary to call in question the "given," though they may
be divided in their notions touching the general nature of mathematical
evidence and whence it draws its apparently indisputable authority. In
certain of the inductive sciences, as in mechanics, physics and
chemistry, generalizations have been attained in which even the critical
repose much confidence. In other fields men are constantly making general
statements which are promptly contradicted by their fellows, and are
drawing from them inferences the justice of which is in many quarters
disallowed. There are axioms and axioms, maxims and maxims. The
confidence felt by a given individual in a particular "given" does not
guarantee its acceptance by all men of equal intelligence. Where,
however, the evidence upon which a disputed "given" is based is