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 ,quality of the imagination , vigor of the emotions ;it is the freshness of the deep springs 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 old merely by a number of years. We grow old by deserting our ideals.
  Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul. Worry, fear, self distrust blows the heart and turns the spirit back to dust.
  Whether 60 or 16, there is in every human being’s heart the lure of wonder , the unfailing childlike appetite of 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 message of beauty , hope , cheer , courage and power from men and from the infinite , so long are you young .
  When the aerials are down , and your spirit is covered with snows of cynicism and the ice of pessimism , then you are grown old , even at 20 , but as long as your aerials are up , to catch waves of optimism , there is hope you may die young at 80.

这个东西我在《心智的感动》上看过
还是多不错的

青春
塞缪尔•厄尔曼
        青春不是年华，而是心境；它不是桃面，朱唇，柔膝；它是坚定的意志，驰骋的想象、炽热的情感；它是生命的深泉，汩汩地涌出。
        青春意味着性情的优越，勇气驱走怯懦，冒险战胜苟安。二十岁有之，六十岁则更常见。岁月有加，并非垂老；理想泯灭，暮年即至。
     
      岁月悠悠，容颜衰老；抛弃热忱，心灵受损。担忧、恐惧、自暴自弃，必然重创心灵，令心灵屈从、精神蒙尘。
        无论年届花甲，还是二八芳龄，心中皆有奇迹的诱惑，永恒的童真，生命的快乐，你我心中皆有一台天线，只要接收来自人们和上帝的美丽、希望、快乐、勇敢的信息，就会青春永驻，风华正茂。

        一旦天线倒下，心灵为愤世嫉俗和悲观厌世的冰雪所覆盖，你就有可能年方20而衰；只要天线不倒，不断接受乐观的电波，你有望年届80而终，年轻依旧。

青春不是年华，而是心境；青春不是桃面、丹唇、柔膝，而是深沉的意志，恢宏的想象，炙热的恋情；青春是生命的深泉在涌流。青春气贯长虹，勇锐盖过怯弱，进取压倒苟安。如此锐气，二十后生而有之，六旬男子则更多见。年岁有加，并非垂老，理想丢弃，方堕暮年。岁月悠悠，衰微只及肌肤；热忱抛却，颓废必致灵魂。忧烦，惶恐，丧失自信，定使心灵扭曲，意气如灰。无论年届花甲，拟或二八芳龄，心中皆有生命之欢乐，奇迹之诱惑，孩童般天真久盛不衰。人人心中皆有一个无线电台，只要你从天上人间接收美好、希望、欢乐、勇气和力量的信号，你就青春永驻，风华常存。一旦天气下降，锐气便被冰雪覆盖，玩世不恭、自暴自弃油然而生，即使年方二十，实已垂垂老矣；然则只要竖起天线，捕捉乐观信号，你就有望在八十高龄告别尘寰时仍觉年轻。



不同版本

呵呵　，我喜欢里面带的哲理