“He who is afraid to ask is ashamed of learning.” — Danish proverb

Locke was asked how he had contrived to accumulate a mine of knowledge so rich, yet so extensive and deep. He replied that he attributed what little he knew to the not having been ashamed to ask for information, and to the rule he had laid down of conversing with all descriptions of men on those topics chiefly that formed their own particular profession and pursuits. The best-informed men are undoubtedly those who adopt this rule.

The Leisure Hour, 1883