Now, “because!" isn't a very satisfactory answer because it doesn't give you a reason to stop doing what you're doing. And because it doesn't give you good reason, it’s not a convincing or reasonable argument. An argument is a claim supported by reasons or evidence. Here's an example of a simple argument: You should bring your umbrella. It's going to rain. In this argument, the first sentence, "You should bring your umbrella," is the main claim. Its aim is to get you to think or act in a certain way. The second sentence provides a specific reason for accepting that claim---it tells you why you should bring your umbrella. Here's another brief argument: