Elon Musk when he proved everyone wrong and becomes emotional during interview.
It takes a lot of hard work and effort to build a single company, It takes immense pain to make it successful. Elon Musk made Zip2, Paypal, X.com, SpaceX, Tesla, Solarcity and took them to great heights.
The greatest advice Elon Musk has given to anyone:
“All the external factors whether some one likes you or not, it is beyond your control, but what is within your control is how each and every second you spend in your life.”