As both developed and developing nations search for alternative sources of energy in response to the growing energy crisis, we at Acumen Fund believe that investing in entrepreneurs who provide innovative energy solutions is an increasingly critical part of the solution.

I think I still have a great sense of adventure and trust, and am surprisingly idealistic given all the horrible things I've seen since I was 25. I think how I have changed is that I have a much deeper understanding of the dark forces in the world, of power.

Even when early innovations start to succeed, it is not uncommon to see growing businesses sabotaged for threatening the status quo.

Impact investing has become a broad umbrella that includes all investing with a focus on both financial return and social impact, but in its best form, impact investing prioritizes impact over returns and achieves outcomes that traditional investing cannot.

Work like you don't need the money. Love like you've never been hurt. Dance like nobody's watching.

I've lived very well all my life, even when I had no money, and there's very little I can't afford.

I'm not against high-tech medicine. It has a secure place in the diagnosis and treatment of serious disease.

I still play hockey every now and then, and I still golf. But my biggest exercise is walking my big dog in the park every day.