On 8 September 1840, Kierkegaard formally proposed to Olsen. He soon felt disillusioned about his prospects. He broke off the engagement on 11 August 1841, though it is generally believed that the two were deeply in love. In his journals, Kierkegaard mentions his belief that his "melancholy" made him unsuitable for marriage, but his precise motive for ending the engagement remains unclear. Later on, he wrote: "I owe everything to the wisdom of an old man and to the simplicity of a young girl." The old man in this statement is said to be his father while Olsen was the girl. Martin Buber said "Kierkegaard does not marry in defiance of the whole nineteenth century".