题目内容：
Youth is not a time of life; it is a state of mind. It is not a matter of rosy cheeks, red lips and supple knees. It is a matter of the will, a quality of the imagination, vigor of the emotions; it is the freshness of the deep spring of life.Youth means a temperamental predominance of courage over timidity, of the appetite for adventure over the love of ease. This often exists in a man of 60, more than a boy of 20. Nobody grows merely by the number of years;we grow old by deserting our ideas. Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul.Worry, fear, self-distrust bows the heart and turns the spirit back to dust.
Whether 60 or 16, there is in every human being's heart the lure of wonders, the unfailing childfike appetite f what's next and the joy of the game of living. In the center of your heart, and my heart there is a wireless station;so long as it receives messages of beauty, hope cheer, courage and power from men and from infinite, so long as you are young.
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