【正确答案】 To people who find nothing to live for in their life, the periods of youth and childhood are exceptionally precious. Actually, this romantic memory is not because they have discovered the extraordinariness of their childhood, but because they have felt life' s recession after their middle age. Everyone has only one chance to live his/ her life; therefore, it is totally understandable to treat this life as a treasure. However, if his life can be integrated with that of the whole humanity, if every day he is contributing a little to this world, he is always growing. Although senility and death are to come sooner or later, his career, which is also the common cause of the mass, will never die away. He can thus acquire "everlasting youth".