The more you dream the more you achieve.

[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.

And, you know, being able to wear the stars and stripes, when you step up on one of the blocks or, you know, when you step off of an airplane or when you hear the national anthem play, you know, it's one of the greatest feelings in the world because you know that there are people at home who are supporting you and watching you.

I live a pretty conservative life, so I probably really haven't done anything crazy.

It's tough to put into words right now, but I finished my career how I wanted to. Through the ups and downs of my career I've still been able to do everything that I've ever wanted to accomplish.

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 think that everything is possible as long as you put your mind to it and you put the work and time into it. I think your mind really controls everything.