He who buys and sells does not feel what he spends.
More Spanish Proverbs:
He to whom God gives no sons, the devil gives nephews.Spanish
A word from the mouth is like a stone from a sling.
Spanish
A fair-weather friend changes with the wind.
Spanish
My neighbour's goat gives more milk than mine.
Spanish
When a peasant gets rich, he knows neither relations nor friends.
Spanish
Women and calendars are good only for a year.
Spanish