Karl Rabeder grew up poor and thought that life would be wonderful if he had money. But when he got rich, Karl discovered that he was unhappy ... so he decided to give away every penny of his £3 million fortune:
"My idea is to have nothing left. Absolutely nothing," he told The Daily Telegraph. "Money is counterproductive – it prevents happiness to come."
Instead, he will move out of his luxury Alpine retreat into a small wooden hut in the mountains or a simple bedsit in Innsbruck.
His entire proceeds are going to charities he set up in Central and Latin America, but he will not even take a salary from these.
"For a long time I believed that more wealth and luxury automatically meant more happiness," he said. "I come from a very poor family where the rules were to work more to achieve more material things, and I applied this for many years," said Mr Rabeder.
But over time, he had another, conflicting feeling.
"More and more I heard the words: 'Stop what you are doing now – all this luxury and consumerism – and start your real life'," he said. "I had the feeling I was working as a slave for things that I did not wish for or need. I have the feeling that there are lot of people doing the same thing."