Yet it was the work of naturalist Alfred Russel Wallace that pushed Darwin to finally release his theory.

VOA: special.2009.12.01

Well, that's the sense of theory that I like to work with, and I would pause over it by saying that after all, there is a difference and practice and we shouldn't too quickly, at least, confuse the terms.

我想在此讨论的就是理论的这种解释，不过我想补充一句，理论和实践是两回事,至少我们不能混淆这两个名词。

耶鲁公开课 - 文学理论导论课程节选

Thomas Hobbes was the author of the first and, I believe, undoubtedly the greatest, work of political theory written in the English language.

托马斯·霍布斯是第一部，我相信，毫无疑问也是最伟大的一部，用英语写成的,政治学著作的作者。

耶鲁公开课 - 政治哲学导论课程节选

Like in any other invention, nobody knows what will work and abstract theory doesn't guide you completely.

正如其他的创新一样,没有人知道哪些是可行的,有时候理论完全无法指导实践

耶鲁公开课 - 金融市场课程节选

If you hope to make it with theory of what people are and how people work, you have to explain and talk about language.

如果你想要理解关于人类本质,及其行为模式的理论,就必须得探讨并解释语言

耶鲁公开课 - 心理学导论课程节选

We'll begin to work out some sort of alternative immaterial theory.

我们会找到,其他的某种非物质理论

耶鲁公开课 - 死亡课程节选

That may actually work that way, but our theory says no, you always want more.

也许实际上会那样,但是我们的理论说,不,不会,你总是希望得到的更多

耶鲁公开课 - 金融市场课程节选

Insurance relies on this theory of risk pooling but it has to make it work.

保险是基于风险汇聚理论的,并运用其有效降低风险

耶鲁公开课 - 金融市场课程节选

All these components have to be compatible with each other and it has to work according to a plan, which ultimately is informed by this theory.

所有的零部件都要能够相互兼容,并能发挥作用,按照上述理论

耶鲁公开课 - 金融市场课程节选

Efficient markets" is a theory about-- well it came in about three decades ago, maybe it's closer to four decades ago-- it's a theory that financial markets work very well and incorporate information very well.

有效市场是...,大约三十年前,甚至四十年前,有人提出了这一假说,他认为金融市场运行良好,而且信息披露全透明

耶鲁公开课 - 金融市场课程节选