This study tries to show the relation between technê and the ethical sphere in the Ancient Greek through mythology and the philosophical literature. Both in mythology and in the philosophical framework the benefits of technê and the power provided by technê for humanity are emphasized. And technê is considered as competence increases the control of human beings in practical areas. However, the ambiguous character of the human experience related to technê and the morally problematic character of this field is also (...) pointed out in the literature. Because, if not controlled, technê has a potential to turn easily against humanity and to produce things that would harm human beings. At this point, ethical values have a crucial role in the control of technê. Technê as a type of knowledge which gives how to do things and how to control the environment but does not give why something is to be done and cannot give an ultimate goal should be subject to higher spheres in the philosophical framework. Therefore technê is subject to ethical and ultimately metaphysical sphere. (shrink)