Sustainability is a vital theme in the discussions around the world when it comes to maintaining life on the planet. This sustainability must be supported by its five dimensions: environmental, social, economic, technological and ethical. In this context, the present article will focus on the ethical dimension, listing as a general objective to analyze the content of the ethical dimension of sustainability and the need to change values and attitudes to reach this dimension. From the research, it can be seen that the ethical dimension analyzes the necessary change of life of human beings with the observance of ethical principles and virtues. This dimension is born by the existential issue of man, the guarantee of life, the need to rethink, r...