Advice, chuckled Doña Vorchenza. The years play a sort of alchemical trick, transmuting one's mutterings to a state of respectability. Give advice at forty and you're a nag. Give it at seventy and you're a sage.

Chapter 9 A Curious Tale for Countess Amberglass section 1 (p. 433) - The Lies of Locke Lamora (2006)