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.
When I got my statement in January, I was worth $2.2 billion. Then I got another statement in August that said I was worth $3.2 billion. So I figure it's only nine months' earnings, who cares?
I lost 80 percent of my wealth and then gave away over half of the rest. So I'm a man of modest means now. But if you budget carefully and watch your expenditures, you can get by on a couple billion dollars.
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