Virtue is of the most important ethical concepts and among those few words including ethical propositions. Aristotle has divided virtues into two ethical and intellectual classes with regard to their purposes. It was known for him that intellectual virtues were stable features of soul which are used by the purpose of recognizing reality (truth). In virtue-oriented epistemology approach which has been developed during the recent decades, it has been emphasized on epistemological values of intellectual virtues and their role in the truth of beliefs. However, there is not an equal perspective about these virtues in various varieties of this approach. For Sosa they are known as types of power and epistemological talents, but for Zagzebski they are deemed as behavioral features and personality characteristics and as their subcategories of ethical virtues. Although he chooses the Aristotle view about intellectual virtues, he does not accept separation of intellectual and ethical virtues. Analyzing various approaches on intellectual virtues, this paper attempts to investigate Zagzebski’s reasons in equalizing intellectual virtues and ethical ones.

In the age of spread of ethics, and development of applied and professional ethics, there remains nothing more significant than science and belief being accompanied with human being all times; the fact that without ethics would destroy science. Many philosophical and epistemic traditions have spoken of scientific rules and manners of conduct; nevertheless, it seems necessary for ethics of science to be regarded as an scientific field and study it completely. In spite of many works in the ethics of research, few works may be found on ethics of science and tried to compile ethical regulations in libraries and publishing scientific findings. To develop this sub-field and explain a framework for compiling ethics of science, some primary agents and compoents is necessary. Such necessaries including possibility and necessity for ethics of science, content of the ethics, challenges facing the branch to be compiled and necessary grounds for it to be organized have been studied in the paper.