English phrase "leap of faith" does not appear in the original Danish nor is the English phrase found in current English translations of Kierkegaard's works. Kierkegaard does mention the concepts of "faith" and "leap" together many times in his works. The leap of faith is his conception of how an individual would believe in God or how a person would act in love. Faith is not a decision based on evidence that, say, certain beliefs about God are true or a certain person is worthy of love. No such evidence could ever be enough to completely justify the kind of total commitment involved in true religious faith or romantic love. Faith involves making that commitment anyway. Kierkegaard thought that to have faith is at the same time to have doubt. So, for example, for one to truly have faith in God, one would also have to doubt one's beliefs about God; the doubt is the rational part of a person's thought involved in weighing evidence, without which the faith would have no real substance. Someone who does not realize that Christian doctrine is inherently doubtful and that there can be no objective certainty about its truth does not have faith but is merely credulous. For example, it takes no faith to believe that a pencil or a table exists, when one is looking at it and touching it. In the same way, to believe or have faith in God is to know that one has no perceptual or any other access to God, and yet still has faith in God. Kierkegaard writes, "doubt is conquered by faith, just as it is faith which has brought doubt into the world". Kierkegaard also stresses the importance of the self, and the self's relation to the world, as being grounded in self-reflection and introspection. He argued in Concluding Unscientific Postscript to Philosophical Fragments that "subjectivity is truth" and "truth is subjectivity." This has to do with a distinction between what is objectively true and an individual's subjective relation (such as indifference or commitment) to that truth. People who in some sense believe the same things may relate to those beliefs quite differently. Two individuals may both believe that many of those around them are poor and deserve help, but this knowledge may lead only one of them to decide to actually help the poor. This is how Kierkegaard put it: "What a priceless