I do not believe we can come to simple conclusions when it comes to the cause and effects of such a complex disorder as autism."

VOA: standard.2010.08.09

Why do I believe in the existence of atoms so small that I can't see them?

为什么我相信原子的存在,它是如此之小,以至于我根本就看不到它们

耶鲁公开课 - 死亡课程节选

But for those of you who raised your hand just tell me I mean why do you think--what makes you believe food can be addictive?

但那些举手的同学,请你们告诉我,你为什么觉得食物会上瘾呢

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And I think with an enthusiastic, inspired Labour Party membership, which I believe I can do, we can achieve that.

BBC: INTERVIEW WITH: PETER HAIN

"I am unsure what he (Usmanov) can do with 25%, and I do not believe he can stop us operating the business on a day-to-day basis, " said Edelman.

BBC: Arsenal bullish over ?200m income

So I'm excited to be here to unveil these plans, because I believe that we can do this.

CNN: Clinton's October 9, 2007 speech on retirement security