As nature makes us always unhappy in every state, our desires picture to
us a happy state; because they add to the state in which we are the
pleasures of the state in which we are not. And if we attained to these
pleasures, we should not be happy after all; because we should have
other desires natural to this new state.

We must particularise this general proposition....


110

The consciousness of the falsity of present pleasures, and the ignorance
of the vanity of absent pleasures, cause inconstancy.


111

_Inconstancy._--We think we are playing on ordinary organs when playing
upon man. Men are organs, it is true, but, odd, changeable, variable
[with pipes not arranged in proper order. Those who only know how to
play on ordinary organs] will not produce harmonies on these. We must
know where [_the keys_] are.


112

_Inconstancy._--Things have different qualities, and the soul different
inclinations; for nothing is simple which is presented to the soul, and
the soul never presents itself simply to any object. Hence it comes that