Affine logic is like sharing your toys with your friends. When you have a toy, you get to play with it all by yourself. But when you give it to your friend, you can't play with it anymore. That's called "using up" or "consuming" the toy.
In affine logic, we use the idea of giving and taking away toys to talk about true and false statements. Just like toys, true statements are very valuable. When we have a true statement, we can use it to make other statements that are also true. But we can't just give out true statements to everyone because that would mean we don't have them anymore.
False statements, on the other hand, are like broken toys. We can give them out to as many friends as we want, and it doesn't really matter because they're not valuable. In affine logic, false statements are called "nothings" because they don't really have any value.
So, affine logic is all about using and sharing valuable statements, while also being able to use and share the not-so-valuable ones. It's like having a bunch of toys and deciding which ones you want to keep all to yourself and which ones you don't mind sharing with your friends.