My original quotes have gone missing, but there are plenty good one in IMDb:
Harry Hart: [Quoting Ernest Hemingway] There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
Harry Hart: Since 1849, Kingsman Tailors have clothed the world's most powerful individuals. In 1919, a great number of them had lost their heirs to World War I. That meant a lot of money going uninherited. And a lot of powerful men with the desire to preserve peace and protect life. Our founders realized that they could channel that wealth and influence for the greater good. And so began our adventure. An independent international intelligence agency operating at the highest level of discretion. Without the politics and bureaucracy that undermine the intelligence of government-run spy organisations. A suit is the modern gentleman's armour. And the Kingsman agents are the new knights.