At the age of 52 Kroc, the founder of McDonalds, mustered up enough courage in his new idea to re-mortgage his home and borrow lots of money.

Despite being plagued by years of health issues, including arthritis, diabetes and losing his bladder and most of his thyroid gland, he continued to persevere and believe in himself.

Today McDonalds is the second most recognizable name in the world, next to Coca Cola.