BOOK II PART II
It is true, few can form exact systems of the
passions, or make reflections on their general
nature and resemblances. But without such a
progress in philosophy, we are not subject to
many mistakes in this particular, but are suffi-
ciently guided by common experience, as well
as by a kind of presentation; which tells us
what will operate on others, by what we feel
immediately in ourselves. Since then the same
qualities that produce pride or humility, cause
love or hatred; all the arguments that have been
employed to prove, that the causes of the for-
mer passions excite a pain or pleasure inde-
pendent of the passion, will be applicable with
equal evidence to the causes of the latter.