Do not cast your pearls before swine
Do not waste good things on people who will not appreciate them. This proverb is adapted from a saying of Jesus from the Gospels, “Cast not pearls before swine.” Jesus appears to be warning his disciples to preach only before receptive audiences.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.