It is good to buy when another wants to sell.
More Italian Proverbs:
A full sack pricks up its ear.Italian
Enough is enough, and too much spoils.
Italian
There are tricks in all trades.
Italian
He would not give the devil a knife to cut his throat.
Italian
When you see the wolf, do not look for his track.
Italian
When it thunders, the thief becomes honest.
Italian