ABSTRACT
There are many ways in which we fail to reason effectively or, perhaps more to the point, there are many ways in which we succeed in being unreasonable. Certain reasoning errors, or fallacies, are especially common. Being aware of those particular errors should help us guard against them. That is not to say that by being able to recognize fallacies as such we will be able to avoid them completely, but we should be able to deal with them more effectively.
