Hello Although the phrase 'a word to the wise' is given in the dictionary, it is not clear how it is used. Here is an example "Hello John, I see you are having problems with changing that tyre. A word to the wise; it helps to loosen the wheel-nuts while the tyre is still on the ground. The phrase is sometimes used when you wish to correct someone without patronising or offending them. Is there an equivalent in Spanish? My try: una palabra al sabio.