EN
The article deals with the problem of evaluation in scientific knowledge. The author substantiates specific role of evaluation in scientific text. Evaluation is being presented as axiological component of cognitive activity that takes active part in the process of composing scientific production. The author differentiates “cognitive evaluation” and traditional understanding of evaluation as a scalę “good - neutral - bad” and States that evaluation penetrates through the entire fabric of scientific text and so can be called the “energy” of mechanism of text making.