Love is a wonderful game which begins in fun and ends in marriage. - Robert Sheckley

One does not fall in love by exercise of reason and good taste; one simply falls, and invents ingenious reasons afterwards. One falls in love with one’s fatality, whether it be a woman or a city.

Earth, Earth," the short, alien Carmody mused. "I think I remember the name now. There was a recent study of isolated worlds and the peculiarities of their development. Earth was mentioned as a planet covered with an obsessively overproductive species. Object manipulation is their outstanding modality. Their project is an attempt to live in their own, ever-accumulating waste products. In short, Earth is diseased place. I believe it is being phased out of the Galactic Master Plan on the basis of chronic cosmic incompatibility. The place will then be rehabilitated and turned into a refuge for daffodils.

We denizens of Earth have a common vice: We take what we’re offered, whether we need it or not.
You can get into a lot of trouble that way.