Wisdom. Life gets hard every now and then, this is what keeps the relationship from sinking. Having the capacity to lighten up each other's life and reminding each other 'why' you're together. Work hard, play hard.
World War 2: British fighter aircraft are being produced in increasing numbers. Here are Spitfires in production, in a factory where women play an important part, and are employed in nearly all branches of construction. April 3, 1941.