In today's second reading (Phil 1:4-6, 8-11), Phillip's prayer for the church at Philippi - and for all of us - is that our love (charity) grow. He prays that our love grow in discernment, not in quantity but in quality.
In the movie Don Juan DeMarco, the title character states that "there are only four questions of value in life... What is sacred? Of what is the spirit made? What is worth living for? And what is worth dying for?" What he speaks of is discernment - knowing what is truly of value in life, so we might dedicate our hearts to only that.
I recall too, to bring up another obscure cultural reference, that a character on the math education show "Square One" sang about having of "6% of my love" left to give his girlfriend. However we divide up and share our love - and it is meant to share! - we should be concerned far more with the quality of the love we give. Paul wrote the book on quality love, so to speak, when he told the Corinthian church that "love is patient and kind.."