If an elderly but distinguished scientist says that something is possible he is almost certainly right, but if he says that it is impossible he is very probably wrong.

如果一位上了年纪的杰出科学家说某件事有可能，他几乎肯定是对的，但如果他说某件事不可能，那他很有可能是错的。

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"But even if no one believes in your dream," he says, "you have to pursue (追求) it."

“但是，即使没有人相信你的梦想，”他说，“你也必须追求梦想。”

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But if so, he says, it is crucial that those physicists explain it.

但即便如此，他说，至关重要的是这些物理学家对存在问题的解释。

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But he says he fears there could be protests if Zaytuna College is seen as teaching students not to accept other religions.

VOA: special.2010.08.05

The citizen of the best regime he says must be able to sustain war if duty requires but only for the sake of peace and leisure.

最佳政体的公民，据他所说,如果有义务上的需要，必需要能承担战争,但目的必需仅限于为了和平与安逸。

耶鲁公开课 - 政治哲学导论课程节选

But, he says, if he tries to persuade people of the goodness and the justice of his way of life on simply rational grounds alone, to persuade them that the examined life alone is worth living, he says he will not be believed.

但他表示，假设他试图说服,良善及正直之士,相信其生活方式的作法,仅在简单的理性基础上，或者试图说服他们,经反省的生命才值得活，他说他们也仍然不会相信他。

耶鲁公开课 - 政治哲学导论课程节选

But if he says satisfaction, well, that's good.

BBC: News | NEWSNIGHT | Jonathan Franzen interview transcript

But what if he says things that are untrue, but popular?

ECONOMIST: Mahathir Mohamad

But if he were, he says he would challenge just about every regulation now on the books with two words: self defense.

NPR: NRA Eyes More Targets After D.C. Gun-Ban Win