We get our friends to roll their sleeves up and get to work.
我们召集我们的朋友共同卷起袖子来做。
Such beginning, such ending.
有怎样的开始,就有怎样的结束。
Even if one didn't know from concrete examples (the 1936 Olympic Games, for instance) that international sporting contests lead to orgies of hatred, one could deduce if from general principles.