Leonardo DiCaprio

As a kid, I was going to be a marine biologist or an actor. When I became successful as an actor, I said, 'Well, maybe I can lend a voice to this with an equal passion.' You realize how lucky we are and how destructive we've been and what little regard we have for the natural world.

I play fictitious characters often solving fictitious problems. I believe mankind has looked at climate change in the same way, as if it were a fiction.

The best thing about acting is that I get to lose myself in another character and actually get paid for it... It's a great outlet. I'm not really sure who I am - it seems I change every day.

I don't ask other actors questions. I think that's too intrusive. I just watch. I don't want to be constricted to an idea of what acting is by anyone else. I want to take my own education.

Hollywood is a very volatile place where artists come in, and they essentially say they want to belong. It's incredibly vulnerable to be an actor and also get criticism at a young age when you're formulating who you are. We've seen a lot of people fall victim to that, and it's very unfortunate.

I've gotten to go to far-off places in the world, have very unique, isolated, intense experiences for four or five months at a time, and then, kind of like a dream, those things disappear. You may see those people again, but it's never, ever going to be as intense as it was for that time period.

I believe, you know, as history unfolds, certain films will disappear, and certain ones will stand the test of time. And you never know which ones those are. And you've just got to go for the opportunities of films you think might be memorable.

I really hate relaxing. I've done three movies in a row, worked for two years straight, and to me, idle time is the devil's workshop. I like to focus on something.

I took some time off after 'Titanic' because I needed to let the dust settle and recharge my battery. I felt, 'OK, you've been given a tremendous opportunity; what are you going to do with it? Now your name can finance movies that you do want to do.'

People are always like, 'It must be so hard for you, not to be able to leave your house. I'm like, 'No, I go where I want and do whatever I want all the time.' 'No, you walk down the street?' 'Yeah, I do all the time.' 'Really?' 'Yeah, all the time.'

Don't think for a moment that I'm really like any of the characters I've played. I'm not. That's why it's called 'acting'.

I had a period when I was sixteen where I started to get a big head. I was going through puberty, and I was nominated for an Academy Award. My head got inflated. My friends were the real ones who said, 'You're acting different.' But the truth is that I don't need that, because I don't get out of hand.