You are not certain. You are lost
To never confront the possibility of getting lost is to live in a state of perpetual dislocation. If you never have to worry about not knowing where you are, then you never have to know where you are."
Nicholas Carr, 'Welcome to Nowheresville'
(To all those convinced of their own convictions, who breathe in humbug and breathe out dogma, who are unable to commit themselves to one moment of self-awareness, and who’d rather trade discovery for stability - that one’s for you)