— 661 —
Probability is either of matter of fact or speculation.
      §5. But to return to the grounds of Assent, and the several degrees
of it, we are to take notice, that the Propositions we receive upon
Inducements of Probability, are of two sorts; either concerning some
particular Existence, or, as it is usually termed, matter of fact,
which falling under Observation, is capable of humane Testimony,
or else concerning Things, which being beyond the discovery of
our Senses, are not capable of any such Testimony.
Locke Hum IV, 16, §5, p. 661