What One Thing Could You Not Live Without?

All of those are such good answers.  Certainly we could not live at all without food.  Family and love are 2 of the most important things one can have in their lives.  So I agree 100% with those answers.  But, since they have been taken, I will go with electricity.  I am so glad I was not born into a time frame when there was no electricity.   Think of all the things we would not have!