When I was young I was amazed at Plutarch's statement that the elder Cato began at the age of eighty to learn Greek. I am amazed no longer. Old age is ready to undertake tasks that youth shirked because they would take too long.
The trouble is that thinking looks like loafing. Who wants to pay people for daydreaming?
You will have to learn many tedious things,...which you will forget the moment you have passed your final examination, but in anatomy it is better to have learned and lost than never to have learned at all.