desire to know(n = noun.cognition) lust for learning, thirst for knowledge - curiosity that motivates investigation and study;
is a kind of curiosity, wonder

desire, in the know, know, know all the answers, know apart, know backwards and forwards, know how, know no bounds, know nothing, know the score, know well, know what's going on, know what's what, royal society of london for improving natural know, sexual desire