An oil furnace heats our school buildings in winter.

我们学校校舍在冬天使用油炉取暖。

I had the courage of ignorance. I didn't know any more about buying and selling real estate than an Eskimo knows about oil furnaces. How was I to get the money to launch myself on my spectacular financial career? That was simple.

我有无知的勇气。我对买卖房地产一无所知，就像一个爱斯基摩人对油炉一无所知。我是如何获得资金来开启我辉煌的金融事业的？那很简单。