ClintEastwood believes you only get "one shot at life".
The 80-year-old actor-and-director thinks people should take every opportunity that comes their way and insists anyone who believes in reincarnation should focus more on the present.
He said: "If you believe in reincarnation you`re putting too much on the other side.
"I believe you have just one shot at life, and you should do the best you can with that shot. And I suppose you should be thankful that you`ve been given the ability to do certain things in life, and not be greedy enough to want to stay around forever."
The five-time Oscar winner also thinks it is important to use your brain to the "best" of its ability.
He added to Britain`s FHM magazine: "God gave you a brain. Do the best you can with it. And you don`t have to be Einstein, but Einstein was mentally tough. He believed what he believed and he worked out things.
"And he argued with people who disagreed with him. But I`m sure he didn`t call everybody jerks."