This paper will examine the conflict between Kant’s moral theory (his categorical imperative) and Kierkegaard’s notion of faith. It will defend Kant’s claim against Kierkegaard’s theory that faith is not a legitimate reason to disregards morality. The reason of why Kant’s ideas are preferable to me is that the categorical imperative allows to define what actions are obligatory and which ones should be forbidden and to choose the way that is more correct and not contradictory to moral norms and society. Immanuel Kant is considered to be one of the greatest and the most famous German philosophers of the 18 th century. He created a truly widespread theory that influences society even now. His moral theory and his categorical imperative remain one of the central philosophical concepts of all the times. In 1785, this great philosopher introduced Fundamental Principles of the Metaphysics of Morals . One of the purposes of this work was to help people get a clear understanding of what moral principles are all about in order to avert possible distractions. Lots of people may say that Kant’s ideas are something that is really hard to comprehend. However, his Groundwork of the Metaphysics of Morals is not that difficult to analyze in comparison to the works of some other philosophers. Kant’s moral theory is based on the concept of good will. Moral knowledge is something that has lots of powers and should be a prior for all humankind. Without any doubts, Kant’s moral theory is rather complex, but at the heart of this theory, the only principle may be found; it is the categorical imperative. The idea of the categorical imperative lies in the fact that one may determine someone’s duty and decide what principles are proper and which ones are not. “The imperative thus says which action possible by me would be good, and represents a practical rule in relation to a will that does not straightaway do an action just because it is good, partly because the subject does not always know that it is good, partly because, even if he knows this, his maxims could still be opposed to the objective principles of a practical reason.” (Kant and Gregor, 1998) According to Kant, a maxim is one of the guiding principles of any action. With the help of maxims, people get a clear understanding of what should be done, and even how these things need to be done. Immanuel Kant was one of those believers, who proved that any person has the right to make choices. Freedom and reasons of actions are the two things, which distinguish people from animals, and we should lose this characteristic. People just have to be free in order to be ready to perform all our duties. If people do not believe that they have enough freedom, they cannot be able to complete their duties, this is why the verb “have to” may be changed into “can or cannot”. People should give promises only in cases they are absolutely sure about their words and may keep them. Otherwise, if the words are not kept, and human promises are false, human life turns out to be senseless and all the beliefs are not true. Søren Aabye Kierkegaard is another philosopher, who offered his ideas concerning faith, duties, and responsibility. In comparison to Kant’s rationalism, Kierkegaard is regarded to be an absurd thinker, who believes in subjectivi