Leonardo Dicaprio

Mozambique is having an economic resurgence but still four out of 10 people there have HIV or AIDS...There's astounding conditions but what I was left with...was the power of the human spirit there and the fact these people have been through so much and they were still dancing in the streets

The best thing about acting is that I get to lose myself in another character and actually get paid for it. As for myself, I'm not really sure who I am. I change every day.

My career should adapt to me. Fame is like a VIP pass wherever you want to go.

I lived in Hollywood and, ironically, I didn't know you could just go out and get an agent and go on auditions and try and become an actor, I thought it was like a Masonic thing, like a blood line you had to belong to – until I was 13. Then I realised what you had to do. It is the one thing I know I want to do for the rest of my life.

As a young boy, I was obsessed with endangered species and the extinct species that men killed off. Biology was the subject in school that I was incredibly passionate about.

Mother Earth is hurting. And she needs a generation of thoughtful, caring and active kids like all of you to protect her for the future.

I get unhappy doing things that I'm not passionate about. Because I feel like I'm squandering this incredible gift I've been given to finance films. As soon as my name alone was enough to make this happen, I vowed to myself that I was going to work with directors who were changing cinema, doing something important, you know?

I urge individuals around the world to stand up, and ask local leaders, if they haven't already, to pledge to purchase cleaner cars, build green facilities, and buy green power like wind or solar energy. Our actions may determine if we become a casualty in the war for a habitable planet for generations to come.

We are facing a tipping point of environmental crisis unprecedented in human history and our very survival is dependent on protecting nature.

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 love being immersed in nature, going to places in the world that are pristine and untouched by man. It's almost a religious experience when you go to a place like the Amazon, and there's no civilisation for thousands of miles.

I've managed to keep a clear head and remain sane in this business because I remain a kid off-camera.

I have learned from my experiences in this industry that there is absolutely no way to control people's opinions on your performance in your movie. You go out there, promote your film and hope people like the work you did.

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.

Our planet's alarm is going off, and it is time to wake up and take action!

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.

For the economy itself will die if our ecosystems collapse.

Yes, I can play younger than my age. But I can play characters older than I am, too. I'm not an actor who can just play the kid.

Brothers don't necessarily have to say anything to each other - they can sit in a room and be together and just be completely comfortable with each other.

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 am not of the vein of actors - and I will not pretend to be one - that takes my character home with me. I don't.