Man's dearest possession is life.It is given to him but once, and （he must live it so as to feel no torturing regrets for wasted years, never know the burning shame of a mean and petty past）; so live that, dying, he might say: all my life, all my strength were given to the finest cause in all the world-----the fight for the Liberation of Mankind. 这是英文原文,扩号内为你需要的部分.
