What is a key characteristic of a sound argument?

A key characteristic of a sound argument is that it is both valid—meaning its conclusion logically follows from its premises—and it contains true premises, which ensures that the conclusion is also true. Validity ensures that if the premises are true, the conclusion must necessarily be true as well. Having true premises strengthens the argument, making it reliable and robust. This combination is what distinguishes a sound argument from merely valid or unsound arguments where premises may be false or irrelevant.

In contrast, appealing to emotions may make an argument persuasive, but it does not necessarily contribute to its soundness. Including irrelevant information detracts from the strength of an argument and does not support a sound conclusion. Circumventing opposing views does not address the validity or truth of the premises; it may even make the argument weaker by neglecting important counterarguments. Thus, the essence of a sound argument lies in its validity and the truth of its premises.