Many eminent men have found a sort of gloomy comfort in this idea, but science has now opened up possibilities for the future which makes this theory less defendable.

许多知名人士在这个想法到了一种令人沮丧安慰，但科学现在为未来开辟了可能性，这得这个理论不那么可靠。

We're in an oil-based economy. And we should have the type of energy security which allows us to have defendable supply lines and not pay for our oil to those who want to do harm to the United States.

我们处于以石油为基础。我们应该拥有这样一种能源安全，让我们拥有可防御供应线，而不是向那些想伤害美国人支付我们石油费用。