Former British prime minister Winston Churchill, who led the UK while it was taking terrible casualties from the World War II bombing of London, was quoted as saying, "For myself, I am an optimist. It does not seem too much use being anything else."
引領英國熬過倫敦大轟炸及大戰慘重傷亡，而最終取得勝利的邱吉爾首相曾經說過，「我是一個樂觀正面的人，似乎除此之外，別無它途。」