"I begin with the principle that all men are bores. Surely no one will prove himself so great a bore as to contradict me in this"

Søren Kierkegaard's quote is a humorous method of revealing his belief that all individuals are tiring. He is suggesting that no one will be so uninteresting as to disagree with him on this point. He is indicating that even if someone were to disagree, they would be showing his point by being so dull as to refute it. This quote is a smart way of expressing the idea that everyone is boring in some way, and that no one is exempt from this. It is a funny way of mentioning the ordinary nature of daily life and the truth that everybody has something uninteresting about them. It is a tip that even though life can be interesting and interesting, it can likewise be ordinary and dull.