It's true that many such quotes are bogus, but this one can be pinned down. It comes from an interview with Einstein published in LIFE magazine, May 2, 1955: "Never lose a holy curiosity. Try not to become a man of success but rather try to become a man of value. He is considered successful in our day who gets more out of life than he puts in. But a man of value will give more than he receives."

http://books.google.com/books?id=dlYEAAAAMBAJ&lpg=PP1...

Also, I recommend the "Carpet Is So Easy To Care For" ad on the preceding page. "Home means more with carpet on the floor."