“The experts are both serious and unanimous about this lesson, and they are willing to state it strongly: Think twice (or many more times) before committing to a relationship with someone who does not share your core values. They believe that the chances of success in such a union are miniscule. Personalities can be complementary. Different interests can spice up a relationship, exposing both of you to knowledge and activities you might never have otherwise tried. But a clash in basic values, they warn, is something a marriage can not easily survive.”
– – 30 Lessons for Loving by Karl Pillemer
I’ve read a lot of books about love. I’m 30-some pages in, this is by far my favorite.