Euthyphro, like us, has many virtues and vices. He tries as hard as he can to follow these virtues. Yet, a lot of the time it is his virtues that lead to his vices. Euthyphro has a virtue of doing what is right, or pious. In his mind he has it set what is pious and what is impious. However this virtue becomes a vice when it leads him to prosecute his father because he believes it is the pious thing to do.

Another virtue of Euthyphro's is that of knowledge. He cared enough about knowledge to learn and educate himself as much as he could about the gods and the subject of religion. Even as he is talking to Socrates, he is willing to pass on some of his knowledge to Socrates by informing him about what makes something pious. Yet, this also turns out to be a vice for Euthyphro. His love for knowledge leads to pride. Euthyphro talks about how the jury will respect and listen to him for the mere fact that he is Euthyphro and is all knowledgeable about the gods and pious things. And Euthyphro tells Socrates that if he tells the jury he learned from Euthyphro that they will listen to him. Socrates then plays off this vice as he questions Euthyphro about piety...which turns out not to be so simple for "Mr. Knowledgeable"-Euthyphro.