Can a person be skeptical about everything or are there limits?Is it possible to

Can a person be skeptical about everything or are there limits?Is it possible to doubt everything or almost everything? Does aperson have an obligation to use ethical and moral reasoning whenexamining ones beliefs. Are there beliefs you possess that cannotbe challenged or shown to be false? How might the skeptic respondto your claim that such a belief cannot be doubted? Identify onesuch specific belief and present your response to the skeptic. (Ifyou dont have such a belief explain how one could live while notaccepting any claim as true.)