Is there a mathematical equation for love?
When it comes to love should people be guided only by rational thought, or should we follow our instinct and emotions? Mathematician, Dr Hannah Fry, says mathematical formula gives an "insight to love". But that’s not the full answer argues Elizabeth Oldfield, director of the Christian think-tank Theos. She says the starting point of love is “intuition”. (Image: Chalk board, credit: Getty Images)