And you're trying to deal with, 'Oh,my gosh,there's the war, and this friend of our family has been killed,' or 'Do I want to go to the prom?'" And then, walking with my Marine father, wounded Marine, that's why he wasn't active duty, walking with him,and here he's a football coach at Cal , so if we go to an athletic event, there would be people painting their signs over in a corner of the parking lot or something and I'd be walking along and I'd be thinking that it was my job to protect my dad from the protesters.

VOA: standard.2010.05.31

And Mark has been extraordinary, as a leader, in maintaining a very high bar and at times, walking away from people who are receiving outstanding recommendations but either don't fit from a cultural standpoint or they're not going to scale and they'd be the wrong person a year or two from now.

作为Facebook的领导者，马克始终坚持选人标准，从不手软，他经常会放弃一些,得到强有力推荐的应聘者,他们要么是在文化方面不契合,要么是因为，如果公司没打算扩张,那他们在一到两年内,会成为错误选择。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选