There has to be a balance in life. A balance of business, family, and the opportunity to learn and teach.

I had one idea that never changed in my mind - that you should use your wealth to help people.

I’m happy when what I’m doing is helping people and unhappy when what I’m doing isn’t helping people.

When you've got the money, you spend it. When you've spent it all, let someone else get going and spend theirs.

There has to be a balance in life. A balance of business, family, and the opportunity to learn and teach.

I set out to work hard, not to get rich.

On why he has donated $600 million to selected charities. I simply decided I had enough money.