This question has already been asked somewhat, "Word for someone who wants to know everything about everything" The best definition given was pantomath, the problem with pantomath is that it means someone who knows all (along with wants to know all), while I'm looking for a word that describes someone who wants to know all or wants to become omniscient, a pantomath, etc.
John is a(n) (insert word) he's always telling me he wants to learn everything he can.
Best Answer
philomath Someone who loves to learn