A one day experience of a doctor would probably be very hard. Doctors have to make sure patients are healthy and in good shape before they can live on their own; it isn't the most easiest job in the world.
Being a doctor requires you to work in a MED hospital for 10 years and in those 10 years you would have to keep studying the genetics of the human body and how to fix that problem in the body, etc.
The paradox of this passage can be best stated as that where you start is where you end because everyone in that race that started to run for something ended up at the same place where they started.
Everyone started to run very fast and soon they were very tired and the one who started slowly won the race but the winner and the ones who did not win ended up in the same place.
A connotation refers to the emotional associations of a word. A connotation tends to be labelled as "positive" or "negative" depending on the feelings it creates in the mind of the listener. A connotation is additional to the word's literal meaning, which is known as denotation.
