Learning will keep us young.

A sixty years old friend asked. I have fallen in love with a thirty years young lady. Am I too old for her?

Spoken by Rosalyn S. Yalow, "The excitement of learning separates youth from old age. As long as you're learning you're not old".

To my this friend! As long as you keep learning how to love your darling well, and be romantic, be loving and make as much love as possible, the excitement would definitely make you feel young as ever. Learning to love another person is considered a learning process in life.