1.Because that is to try to find very highly gifted individuals who are likely to make a difference in their generation.
make a difference 区别对待;有(重要)作用;有影响;有关系
What you have told me may make a difference to my own position.
你告诉我的一切,可能影响我自己的看法 。
Dose his absence make a difference to your work?
假如没有他,对你的工作会有影响吗?