Admirattion  Admiration 

I´m feeling I feel very happy when I think about some special people like: Nelson Mandela, Albert Einstein, Michael Jordan and Rafa Nadal.
These men are a referent (this is not the correct word, perhaps you mean 'influence?') on my life. They were a human beings with brilliant attitudes on  for life.

If someone ask asks me about why I admire this these idolos idols, I will say that:

Nelson Mandela was a South African anti-apartheid revolutionary and politician. Mandela was brave for human rights in his country. He was the first white president of South Africa and (usually a comma is not needed when using 'and') the first elected in a fully representative democratic election.

Albert Einstein was a theoretical physics and developed the general theory of relativity. I admire him for his great capacity to creative create (you could also say 'to be creative'). However, Also, I like how he could overcome himself because when he was a child his teachers said that he was a bad student and hasn't didn't have aptitude to learn.

Michael Jordan had has been a one of the best basketball players from the USA. When he was at School, he wanted to play on the team of basketball of his School for his school basketball team, but his coach told him that he would never will play well basketball then basketball well, however Jordan wanted to demonstrate to his coach that he could do it.

Rafa Nadal is another human person who has been influential on my life because he has a positive attitudes attitude to face all  of his Championship (opponents?).

I believe that on this so in this difficult world, each us need leaders like the ones referenced, leaders that they are an example of for life.