I just celebrated my twelfth wedding anniversary and here's some advice: what you want to look for in a mate is a <i>loyal friend for life</i>.<p>Things change. People change: your city, your religion, your personality, your income, your health. Through each change it's nice to have someone to make the change with you. A long, successful marriage requires that the relationship be reinvented as things change. At first you are lovers discovering each other, at another time you are collaborating parents, at another time you are supporting your spouse's dreams, and at yet another time it's your turn to have your dreams supported.<p>If you're looking for something specific like wealth or beauty, that's fine but it would never work as a <i>foundation</i> for a satisfying marriage relationship. I've found the best foundation to be nurturing an unconditional love for all people, because when your spouse changes into another person you will still be able to love them.