1.
Knowledge
is based on experience plus custom, not on logic.
2.
In
opposition to Descartes, Hume argues that beliefs are not distinguished from
fantasies by being conclusions of superior arguments; they are distinguished by
the manner in which experience and custom impress them on the mind. (This is
not supposed to imply that all beliefs are necessarily true.)
3.
The
three principles of association transmit `liveliness and vivacity’ from beliefs
to memories, thus rendering the latter into beliefs.
4.
The
top paragraph on p. 37 again implicitly attacks Descartes. Here, Hume claims
that logical dependence is an entirely unreliable guide to ontological
dependence.