This paper aims at investigating if it is possible to find in Aristotle s work, especially in the Ethica Nicomachea (EN), elements to substantiate the concepts that were later attributed to ethics and to moral. Although ethical virtue is uniquely described in Greek - êthikê aretê - we will seek to find evidence that different demonstrations of its practical application could already be found in the EN. The first demonstration would be acting in consonance with the general laws and customs, which could be related to today’s moral. In a second demonstration, êthikê would be found in particular cases where the law could not be easily applied, but in which the virtuous person is capable of acting accordingly to the mean state (mesotes). This idea is supported by the city envisioned by Aristotle, where Politics would be responsible for orchestrating this complex êthikê.