From Longman Dictionary of Contemporary Englishthe fount of all knowledge/wisdom etcthe fount of all knowledge/wisdom etcliteraryCOME FROM/ORIGINATE the place, person, idea etc that all knowledge, wisdom etc comes from SYN source → fount
Examples from the Corpus
the fount of all knowledge/wisdom etc• But these pronouncements should not be taken as the fount of all wisdom.• Cassie Willmott, the fount of all knowledge. 