Nothing in our daily life will last if neglected; houses, stuffs, friendships, pleasures. Roofs fall in, love comes to an end. A tile needs re-fastening, a joint must be repaired, a misunderstanding cleared up. Otherwise bitterness is created; feelings deep down in the soul become centers of infection, and one day, during a quarrel, the abscess breaks, and each is horrified by the picture of himself or herself discovered in the other's mind.

Un Art de Vivre (The Art of Living) (1939) - The Art of Marriage