According to the modern world view, the characteristic of science is accepted as being more objective. Through this acceptance the modern world view has established the epistemological foundation known today. As a result the universal truth of validity were gained and reached through the scientific method. Throughout the modern times, the principle of the scientific method was thought to be the method of induction. Observations and experiments generalized propositions, such as an assumption or a hypothesis, which is considered to be a scientific law. Because an observation and an experiment is to be objective, the results is to be pertained and objective, too. Therefore induction is considered as the very standard of judgment about truth. Today, the character of disputations on philosophy of science is the attempt which overcomes the absolutism and the dogmatism of science and the scepticism on science. This tendency is represented by Karl Popper and Thomas Kuhn, both of whom criticize a dogma of science. Their attempts have become the turning point through the history of the philosophy of science. We know the natural character of "science" through them. Popper insists the falsificationism because of the inductive method's being contradictory, and he insists to represent the hypothesis which is possible to refute, and to examine the hypothesis, because it has a limit to accumulate the evidences just as the inductive method does. Hence he proclaims that this critical attitude is the most reasonable process. Popper's attitude, which is open and critical, comes to light by his view of the truth. Popper uses the terms 'corroboration' and 'conformation' instead of the general used terms 'true' and 'false' because these terms are not possible to refute. However the terms, 'corroboration' and 'confirmation' which Popper insists does not have the immutability. They are used in processing 'conjecture' and 'refutation' which mean that it is the truth by that time. So the conclusion which is gained by this method is only resonable through the scientific method of research. And this process is the inquiry for the truth which has 'regulative' meaning. The processing of research is the only course for absolute and immutable truth. Thomas Kuhn insists that the truth through scientific research holds true only within the paradigm. Through the scientific revolution a paradigm can be changed, which means that the view of the world is changed too. According to Kuhn, the scientific revolution cannot be with the objectivity or the rationality, due that it is dependent upon the agreement between scientists. Therefore the paradigm can not have the same standard even though it is in the same field of science. A paradigm can not be changed through the continuous and accumulative results of science, but only through a scientific revolution, Therefore a paradigm will be different from the former paradigm. In conclusion, According to Popper and Kuhn, the truth through scientific method or scientific knowledge is not absolute and nor is it objective. It means the following: 1) The scientific discovery for the truth is not absolute. 2) The scientific discovery for the reality is not objective. 3) These facts show that science is open. Finally, their inquiry make possible to open the science to field of fair criticism.