|Talk to the suit.|
Jacopo Pontormo, Portrait of a Young Man (c. 1526)
"Cosimo de' Medici spoke to a friend of his who was very rich but not very learned, and had obtained through Cosimo a mission outside of Florence, and asked Cosimo as he was leaving how he ought to behave to succeed in this mission. Cosimo replied: 'Dress in rose color, and speak little.'"
Baldesar Castiglione, Il libro del cortegiano (The Book of the Courtier, 1528)
Concerned about your upcoming business trip to Milan? Take it from Cosimo: keep your mouth shut and let your pink suit do the talking.