English In this article we intend to characterize the issue of the so-called naturalistic fallacy and to evaluate how John Searle approaches it. To do this, we will briefly approach the arguments of David Hume and G. E. Moore and then analyze how Searle's objections to the alleged fallacy relate to such approaches and if have been successful. português Neste artigo pretendemos caracterizar a questão da chamada falácia naturalista e avaliar como John Searle a aborda.
