The phrase "Don't marry someone you can live with" suggests that merely coexisting or being compatible on a surface level is not sufficient for a fulfilling marriage. It implies that a deeper and more profound bond is necessary for a lasting and meaningful relationship.
On the other hand, "Marry someone you can't live without" highlights the idea that the best marriages are built on a love and connection so strong that the thought of living without that person is inconceivable. It signifies a level of emotional dependency and devotion that goes beyond mere convenience.
In essence, this quote encourages individuals to prioritize emotional and spiritual connection when choosing a life partner. It underscores the idea that a successful marriage is built on a love so deep that it becomes an integral and irreplaceable part of one's life, something they cannot imagine living without.