AdvertisementGetty “Choose a life partner who will not only celebrate your successes, but also stand beside you during times of failure.” “Much of the marriage advice grandparents pass down has stood the test of time because it reflects what modern relationship science now confirms,” explained Emily Longo, a licensed marriage and family therapist (LMFT) with Silver Hill Hospital in Connecticut. Read on for some of the marriage advice that grandparents from coast to coast would give their grandchildren. At the risk of stating the obvious, choosing a life partner carefully is an important first step in laying the groundwork for a successful marriage. Advertisement“Show up, pay attention, and listen for the meaning behind what your life partner is saying,” advised Solomon.