Happiness lies in the joy of achievement and the thrill of creative effort.

幸福在於取得成就時的喜悅以及做創造性工作而產生的激情。

The world can be changed by mans endeavor, and that this endeavor can lead to something new and better .No man can sever the bonds that unite him to his society simply by averting his eyes . He must ever be receptive and sensitive to the new ; and have sufficient courage and skill to novel facts and to deal with them .人經過努力可以改變世界，這種努力可以使人類達到新的、更美好的境界。沒有人僅憑閉目、不看社會現實就能割斷自己與社會的聯絡。他必須敏感，隨時準備接受新鮮事物;他必須有勇氣與能力去面對新的事實，解決新問題。

We cannot always build the future for our youth , but we can build our youth for the future .我們不能總是為我們的青年造就美好未來，但我們能夠為未來造就我們的青年一代

Growth and change are the law of all life. Yesterdays answers are inadequate for today’s problems ----just as the solutions of today will not fill the needs of tomorrow.生長與變化是一切生命的法則。昨日的答案不適用於今日的問題--正如今天的方法不能解決明天的需求

Power invariably means both responsibility and danger .實力永遠意味著責任和危險

The only limit to our realization of tomorrow will be our doubts of today .實現明天理想的唯一障礙是今天的疑慮。