Book: The sea, the sea. Page 4

Yes, the decisive test - how you need to have people around all the time. It is a precise measure, it is more important than passion, or admiration, or love.
(... we were always drawn to each other, always wanted to be together. Here it is, check: it's stronger than devotion, admiration, passion. If you all the time need to man were near, this is love.)