Life can be an asshole. Time can be very limited. So you can't always get the nicest version of something you want or need. You might need to eat faster than you would like to, or eat something other than your top choice. You might even have to feel hungry. We need to know when to think about other people's situations and be thankful for what we have. Be agile and be ready at all times to use that understanding as a tool. Getting upset and complaining is an absurdity, a capitulation to our own f...