Leonardo DiCaprio says success and wealth don't make him happy. The star shares that he feels 'lucky' to have achieved all his dreams but would rather be 'fulfilled' than to have all the money in the world.

'I've been very lucky to have achieved a lot of the things that I dreamt of achieving as a young man. But, at the end of the day - and I truly believe this - it is not about achieving great wealth or success. Because they don't bring happiness ultimately. They really don't,' the actor said.

'What matters is whether or not you've fulfilled the idea of having led an interesting life, whether you've contributed in some way to the world around you,' he added.

And whilst money is not important to the 41-year-old actor now, he admits it was always on his mind when he was growing up and saw acting as a 'shortcut out of the mess.' He added to The Telegraph magazine: 'Money was always on my mind when I was growing up. So I was always wondering how we were going to afford this and that. Acting seemed to be a shortcut out of the mess.'

On Dating

The actor has a history with a couple of models as girlfriends, with a string of exes including Bar Refaeli, Erin Heatherton and Toni Garrn. But it appears he lusts after brains as well as beauty, with the environmentally friendly star opening up about what he looks for in a woman.

'I could never date a woman who doesn't believe in climate change,' DiCaprio said in an interview with Germany's TV Movie magazine.

Leonardo, 41, feels so strongly about Climate Change, he even gave a speech at the United Nations Climate Change Summit in 2014. He also runs the Leonardo DiCaprio Foundation, which describes itself as a foundation that focuses on long-term health and well-being of all living things on Earth.

'I believe humankind has looked at climate change in that same way: as if it were a fiction, happening to someone else's planet, as if pretending that climate change wasn't real would somehow make it go away,' he argued during the U.N. summit.