教育之艱苦在於從意念中獲得經驗。(西班牙裔美國哲學家、詩人 桑塔亞那.G.)
The greatest lesson in life is to know that even fools are right sometimes. (Winston Churchill. British statesman)
傻瓜有時候也是對的。(英國政治家 丘吉爾 .W.)
To make good use of life one should have in youth the experience of advanced years, and in old age the vigor of youth. (Stanislars I, Polish king)
青年而有老年之經驗，老年而有青年之朝氣，就能使人生發揮更大的作用。(波蘭國王 斯坦尼勞斯壹世)