Curiosty killed the cat

Ever heard the phrase "curiosity killed the cat" i think it should be rephrased to curiosity killed us all. It is because of that thought that pops into your mind before you do something stupid "I wonder.... ."This thought has changed our lives and not for the better. It's the reason we have sins. It's the reason the world is full of evil and war. So next time that thought (I wonder....) pops into your head block it out and replace it with. Is this The right thing to do?