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| #61 |  | Do not take life too seriously; you will never get out of it alive. 
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| #62 |  | Do what you can to prolong your life, in the hope that someday you'll learn what it's for.
 
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| #63 |  | "Do you think there's a God?" "Well, ____SOMEbody's out to get me!"
 -- Calvin and Hobbs
 
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| #64 |  | Do your part to help preserve life on Earth -- by trying to preserve your own. 
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| #65 |  | Don't abandon hope.  Your Captain Midnight decoder ring arrives tomorrow. 
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| #66 |  | Don't abandon hope: your Tom Mix decoder ring arrives tomorrow. 
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| #67 |  | Don't go to bed with no price on your head. -- Baretta
 
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| #68 |  | Don't have good ideas if you aren't willing to be responsible for them. 
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| #69 |  | Don't kid yourself.  Little is relevant, and nothing lasts forever. 
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| #70 |  | Don't let people drive you crazy when you know it's in walking distance. 
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|            ...   |