Exactitude of the scientific method cannot be identified either with the empirical methods or with the experiment in science. It is characterized by complicated procedures of formalization and it forms the method out of the algorithm. Exactitude is not given for ever but it changes under the influence of discovery of deeper levels of substance as true scientific thinking is creative and resists strict formalization. The exact (formalized) method is continuously changing from a partial task of cognition into means of further cognition — this change works as its bearing internal contradiction. The character of formalization is subjected to the progress of the objective truth, i. e. the explanation and prediction of laws, which is the very aim of scientific cognition. Formalized science becomes the component of the dialectical 'konwledge and it is the dialectical knowledge which overcomes the formal Universal of exactitude and forms the concrete universal. Whether formalization is necessary is shown by the theory, forming the kernel of the scientific cognition. Formalization is, therefore, stopping the halfway to the strict algorithm and it makes mostly a semi-weak method as it is called by V. Filkorn.