US scientist and statesman. German novelist and poet. It is the province of knowledge to speak and it is the privilege of wisdom to listen. The young man who has not wept is a savage, and the old man who will not laugh is a fool. Dialogues in Limbo , Ch.
Some folk are wise, and some are otherwise.
An ounce of a man's own wit is worth a ton of other people's. Irish-born British writer. It is never wise to try to appear to be more clever than you are. It is sometimes wise to appear slightly less so. Knowledge Bloomsbury Thesaurus 2.