Abstract
The article deals with the problem of the so-called “axiological neutrality” which characterizes modern science. Starting from a psychological conception of intrinsic value as that which is perceived worth being pursued, the author first shows that science can study values only indirectly. There are two senses in which science must remain axiologically neutral: on the one hand, it must avoid all ontological evaluation of its objects (ontological neutrality); on the other hand, it must keep separate the evaluation of its results from the question of justifying them (epistemological neutrality). Nevertheless, values intervene in the scientific research, principally in the form of epistemic values (coherence, simplicity, rationality). At the end the author shows that the ethical and political context determines the framework in which values are assigned.