答案:Youth means courage over shyness and the adventurous spirit of deserting the love of ease. This often exists in a man of sixty more than a boy of twenty. 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 passion wrinkles the soul. Worry, fear and self-distrust bow the heart and turn the spirit back into dust. Whether sixty or sixteen, there is the desire of wonders, the endless pure desire of what’s next and the joy of the game of living in every human being’s heart.