The message the book is trying to tell you is to try to stick together and get to your destination even if you have to sacrifice some things as in this book and throughout the whole series, a lot of people were sacrificed just for Thomas and his friends to get out of the Maze. What we should learn from Thomas and Minho is starting from Thomas is that to always be inquisitive and always fight for your idea no matter how many people oppose your idea so this is a really good skill and moral you should equip to succeed in anything and for Minho he is really good at analyzing any situation and make the best out of what you have. Another thing which is really good to possess in times when you have the minimum of most things.