We measured our success not just by how much money we made, but by how much we contributed to the community. It was a two-part bottom line.

Don't just do something because it's a trendy idea and will make you a lot of money. The reason I say that is because any kind of venture involves going through difficult times. If you're doing something you are passionate about and really believe in, then that will carry you through.

One of the great things about Ben & Jerry's for me is that not only is it delicious, but I get it for free.

Startups are often very undercapitalised, but I found that to be very beneficial because it forces you not to throw money at problems. Instead, you learn all the nuts and bolts of what you're doing and become an expert.

It's to be expected that you make mistakes when you're breaking new ground.

If you happen to believe what Ben & Jerry's is supporting and involved in, then you should support the company. If you don't believe in what we are supporting, don't support it.

Now, when we face a problem like global warming, and you understand that the biggest impacts on global warming come from business and industry, I think business needs to take a leading role.