Address http://www.ted.com/talks/james_cameron_before_avatar_a_curious_boy.html/ to the 2010 TED conference (13 February 2010) 
Context: Imagination is a force that can actually manifest a reality. … Don’t put limitations on yourself. Other people will do that for you. Don’t do that to yourself. Don’t bet against yourself. And take risk. NASA has this phrase that they like, "Failure is not an option." But failure has to be an option. In art and exploration, failure has to be an option. Because it is a leap of faith. And no important endeavour that required innovation was done without risk. You have to be willing to take those risks. … In whatever you are doing, failure is an option. But fear is not.
                                    
“Take risks and don't fear failure”
Quote, Take risks and don't fear failure: Waheeda Rehman
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Waheeda Rehman 21
Indian actress 1938Related quotes
                                        
                                        Not failure, but low aim, is the crime. In great attempts it is glorious even to fail. 
Source: Striking Thoughts (2000), p. 121
                                    
                                        
                                        Source: Striking Thoughts (2000), p. 121 
Source: Striking Thoughts: Bruce Lee's Wisdom for Daily Living
                                    
“If you don't take risks, you're already dead.”
Shit Magnet: One Man's Miraculous Ability to Absorb the World's Guilt (Feral House, 2002)
                                        
                                        Living, Loving, and Learning  (1982) 
Variant: Risks must be taken because the greatest hazard in life is to risk nothing. 
Source: Living Loving and Learning 
Context: To love is to risk not being loved in return. To hope is to risk pain. To try is to risk failure, but risks must be taken, because the greatest hazard in life is to risk nothing.
                                    
“If you don't take risks, you'll have a wasted soul.”