It requires that discipline of character which can say "yes" and "no" to other men, not by reason of blind obstinacy, but with firmness derived from a conscious evaluation of relevant alternatives.

商业组织需要对人的性格进行那样的训练，使他对周围的人做出“是”或“否”的回答时不是出于盲目的固执，而是出于对相关可选择的方案进行自觉评价后得到的明确答案。

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It means people with independence, who are willing to say no to me so, so that, you know, no more yes-men or women in the White House.

CNN: Transcript of Thursday's Democratic presidential debate