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.

许多知名士在这个想法中找到了一沮丧的安慰，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.

我们处于为基础的经济中。我们应该拥有这样一能源安全，让我们拥有可防御的供应线，而不是向那些想伤害美国的支付我们的费用。