Bill Gates: going to Mars is a waste of money. Musk will be a great philanthropist.

Bill Gates, co-founder of Microsoft, said in an interview broadcast on Thursday that he would rather spend money on a life-saving vaccine than go to Mars, but he thought Elon Musk would become a "great philanthropist".

In the interview, Gates talked about the differences between himself and Musk in their concerns. Gates made the comments when asked if he would encourage Musk to join the super-rich philanthropist club. The club includes Gates, Warren Buffett and Amazon founder Jeff Bezos.

"Yes, I think he will be a great philanthropist one day," Gates said of Musk. " Obviously, even without philanthropy, companies like Tesla have had a positive impact. But anyway, I don't think he will spend the money on himself, except for a few trips to Mars, which may cost some money. Musk will eventually use his intelligence to become a philanthropist. "

Gates also said that in his view, going to Mars is not about spending money. "going to Mars is actually quite expensive. You can buy a measles vaccine to save lives at a price of $1000 per life saved, so it's just a reason, like saying, 'Don't go to Mars.'"