To succeed you have to be innovative.

It's going to cost trillions of dollars to rework the energy sources all over the world. Were going to have to move away from fossil fuels.

Rupert Murdoch is the most dangerous man in the world.

I had more energy at 50. On the other hand, at 75, I've probably got a little more wisdom and good judgment than I had at 50 because I've got more experience. But I haven't really changed. I'm still driven by the same philosophy.

I made a lot of money. I earned a lot of money with CNN and satellite and cable television. And you can't really spend large sums of money, intelligently, on buying things. So I thought the best thing I could do was put some of that money back to work - making an investment in the future of humanity.

The word impossible does not exist for me. I've got a lot of signal flags in my flag bag, but there is not a white one in there. I am going to keep fighting until the day I die - and might keep on fighting afterward ... depends on where I am.

I don't measure success in numbers, but I consider my contributions of more than $1.3 billion to various causes over the years to be one of my proudest accomplishments and the best investment I've ever made. Those dollars have improved lives, saved species, fought disease, educated children, inspired change, challenged ideas and opened minds; at the time of my death, virtually all of my wealth will have gone to charity.