If I claim to love somebody, but I visit his house only once a week and ask, "Please give me such-and-such," where is the exchange of love? Love means there is some exchange. If you love somebody but you have not given anything to that person or taken anything from him, where is the love? Love means that there is exchange. If you love somebody, if you have not given anything to that somebody, neither you have taken something from him, where is the love? Is that love?

Srila Prabhupada, June 28, 1976, Vrndavana