4. As certain, but not so easy and ready as intuitive knowledge.
This knowledge, by intervening proofs, though it
be certain, yet the evidence of it is not altogether so clear and bright, nor the assent so ready, as in intuitive
knowledge. For, though in demonstration the mind does at last perceive the agreement or disagreement of the
ideas it considers; yet it is not without pains and attention: there must be more than one transient view to find it. A
steady application and pursuit are required to this discovery: and there must be a progression by steps and
degrees, before the mind can in this way arrive at certainty, and come to perceive the agreement or repugnancy
between two ideas that need proofs and the use of reason to show it.
