experience never misleads; what you are missed by is only your judgement, and this misleads you by anticipating results from experience of a kind that is not produced by your experements. (leonardo da vinci, italian painter)經驗永遠不會對妳做錯誤的引導；把妳引導錯的只是妳自己的判斷，而妳的判斷之所以對妳發生誤導的作用，乃是由於它根據那種並非借著實驗而產生的經驗來預料的結果。(意大利畫家 達芬奇)