A word to the wise is sufficient
Intelligent people can take hints; they don't need to have everything explained to them at great length.
The phrase “a word to the wise” frequently accompanies a warning of some sort.
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.