I feel like Aaron brings out the best in me

If you want to be the best you have to do things that other people aren't willing to do.

If you look at me, basically my whole entire life I've been around water. So when you look at a stat like, "If you leave the faucet running for two minutes while you brush your teeth you waste four gallons of water," to me that's mind-blowing. There are so many people that don't even have access to clean water, and people leave their faucets running. For me it was something that fit with things that I believe in.

And I hope seeing a therapist becomes 10 times easier in the future. For me, once I came out of treatment, I got into a therapist and continued my road to recovery and health and happiness. But not everyone can do that. It's challenging to see a therapist when you work full-time, when you can't get an appointment within a week, and then by the time you do get one, maybe you feel like your "problem" has lessened and you don't bother to go in. It's about access.

Every day, there's always something to be worried about; you turn on the news and see something different every day, and it's terrible. Hopefully, as Americans, and as the inhabitants of the world, we can come together. We need to change lives - whether that's conserving water, destigmatizing mental health treatment or something else. We can change lives.

I know it won't be eight medals again. If you want to compare me to that, that's your decision, not mine. I'm going out there to try to accomplish the things that I have in my mind and in my heart.

[Phelps] firmly denies that he takes drugs, suggesting that the notorious photo of him smoking from a bong was a one-time lapse of judgment.