Certainty (n.) in delusion grows in proportion to the enigmatic void that first appears where the meaning should be.
Certainty (n.) is the rarest of things for a normal person, and it appears only alongside an action he undertakes.
Certainty (n.) is Freud's major term, not truth: his method is Cartesian, setting out from the subject of certainty.
Certainty (n.) reached after due reflection is mostly the superficial, rationalised, after-the-fact ordering of what desire foments.
Certainty (n.) for Descartes is never acquired once and for all: each time, by each person, it must be repeated — an ascesis.
Certainty (n.) and not reality is what is at stake in delusion: the subject may admit his voices are unreal and stay unshakably sure they are about him.
Certainty (n.) in human action arrives through the scansion of one's hesitations — and the haste of concluding decides in the other whether one's move was error or truth.