Advice of an old Obstetrician

This story was related to me by Dr.Mark Amerasinghe, Orthopedic Surgeon.
It was in the 1950s. Dr.Henry Nannayakkara, had recently returned after getting his FRCS and MRCOG from UK to Ceylon. He was attached to the De Soyza Maternity Home, Colombo. He was full of new ideas in early intervention in Obstetrics. One day he was seated in a room next to the Operating Theatre at the DMH with Dr.Caldera the Senior Obstetrician. There was a mango tree with a lot of fruits hanging and a few ripe fruits fallen on the ground below. Dr.Caldera pointed the tree to young Dr. Nannayakkara and told him ' Dr.Nannayakkara, do you see those mango fruits? When the time is ripe they fall down.' That was all Dr.Caldera said and Henry understood.