Milos Raonic

One time, I got to go play with lion cubs in Johannesburg. It was amazing. But it's difficult when you're on the road. We're always playing tennis, and there's a lot of pressure. So sometimes you don't get to do the things you'd like to do, because the priority is tennis.

As a kid, I always idolized entrepreneurs. I thought they were cool people in the way that I thought basketball players were cool people. It's cool that some people get paid to dunk basketballs, but I'm not one of those people.

I want to tell mayors, county chiefs and heads of big companies: don't just chase GDP growth; don't chase the biggest profits at the expense of our children and grandchildren and at the cost of sacrificing our ecological environment.