By 2007, Zuckerberg was a billionaire at the age of 23. It now has close to a trillion users worldwide. He has been named among the 100 wealthiest and most influential people in the world by Time magazine's Person of the Year.

Famous Saying: “A squirrel dying in front of your house may be more relevant to your interests right now than people dying in Africa.”

5. Narayana Murthy

Murthy is one of the seven co-founders of Infosys, and served as the CEO of the company from 1981 to 2002, and then as chairman till 2011. He is now chairman-emeritus.

After his first job at IIM-A, he started company called Softronics in 1976. Its failure made him join Patni in Pune. After settling down in Pune, Murthy founded Infosys in 1981with an initial capital of Rs 10,000, which was invested by his wife Sudha Murthy.