悲觀者抱怨風向，樂觀者期待風向改變，務實的人調整帆布。“The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.”

“The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.”
– William Arthur Ward, Scholar
「悲觀者抱怨風向，樂觀者期待風向改變，務實的人調整帆布。」– 威廉‧亞瑟‧沃德 (學者)
威廉‧亞瑟‧沃德 (1921-1994) 為美國著名作家，著有「信念的泉源」 (Fountains of Faith)。