Variant: Everybody knows if you are too careful you are so occupied in being careful that you are sure to stumble over something. 
Source: Everybody’s Autobiography (1937), Ch.1
                                    
“Evil, then, must be the negation of something man had added to the world. Ultimately, it was caring about something that made the world liable to evil. Caring. And then the caring gets torn asunder. Everybody dies, but not everybody cares.”
            Matterhorn: A Novel of the Vietnam War, Ch. 19 (2010). 
Context: He thought of the jungle, already regrowing around him to cover the scars they had created. He thought of the tiger, killing to eat. Was that evil? And ants? They killed. No, the jungle wasn't evil. It was indifferent. So, too, was the world. Evil, then, must be the negation of something man had added to the world. Ultimately, it was caring about something that made the world liable to evil. Caring. And then the caring gets torn asunder. Everybody dies, but not everybody cares.It occurred to Mellas that he could create the possibility of good or evil through caring. He could nullify the indifferent world. But in so doing he opened himself up to the pain of watching it get blown away. His killing that day would not have been evil if the dead soldiers hadn't been loved by mothers, sisters, friends, wives. Mellas understood that in destroying the fabric that linked those people, he had participated in evil, but this evil had hurt him as well. He also understood that his participation in evil, was a result of being human. Being human was the best he could do. Without man there would be no evil. But there was also no good, nothing moral built over the world of fact. Humans were responsible for it all. He laughed at the cosmic joke, but he felt heartsick.
        
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Karl Marlantes 3
Businessman, novelist 1944Related quotes
                                        
                                        Remaking the world, The Speeches of Frank N.D. Buchman, Blandford Presss 1947, revised 1958, p. 46 
Moral attitude
                                    
                                        
                                        From 1980s onwards, Norie Huddle interview (1981) 
Context: There’s a built-in resistance to letting humanity be a success. Each one claims that their system is the best one for coping with inadequacy. We have to make them all obsolete. We need to find within technology that there is something we can do which is capable of taking care of everybody, and to demonstrate that this is so. That’s what geodesic domes are about and that’s what my whole life has been about. Don't fight forces, use them.
                                    
                                        
                                        NBC-TV Meet the Press (July 1, 2012)   https://www.youtube.com/watch?v=QqONZAN_Us0 
2010s
                                    
“One must care about a world one will not see.”
                                        
                                        Attributed to Russell in The Wordsworth Dictionary of Quotations (1997), p. 450, and in Robertson's Dictionary of Quotations (1998), p. 362, but no specific source is given. 
Disputed
                                    
John Vogl (December 27, 2006) "No standing ovation for Ovechkin", The Buffalo News, p. D4.