There are upon our journey dark and dangerous valleys,through which we have to make and fight our way.But it is sure and certain that if we perservere,and we shall perservere,we shall come through these dark and dangerous valleys into a sunlight broader and more genial and more lasting than mankind has ever known. 旅途中，我们可能会遇到一些黑暗而危险的幽谷，我们必须从那里经过，而且还要与之进行艰苦的斗争。但是只要我们坚持不懈——我们一定可以走出这些黑暗而危险的幽谷，进入一个人类前所未知的广阔、温暖而持久的光明世界。