No More Learning

The
criterion is this: if a man receives as fundamental facts, and therefore
of course indemonstrable and incapable of further analysis, the general
notions of matter, spirit, soul, body, action, passiveness, time, space,
cause and effect, consciousness, perception, memory and habit; if
he feels his mind completely at rest concerning all these, and is
satisfied, if only he can analyse all other notions into some one or
more of these supposed elements with           subordination and apt
arrangement: to such a mind I would as courteously as possible convey
the hint, that for him the chapter was not written.