He wanted to show how three very different artists worked hard to become experts in their art.

VOA: special.2009.08.07

I became so obsessed with it that we drove up there so I could visit every school at which she had taught, and we actually found somebody who-- we knew he wouldn't like her because he was sweeping out the church, he worked for one of the churches, and she was very anti-clerical.

我实在太着迷于是就开车去了那,这样我就能去看她教过的每所学校,而且我们真发现一个人,我们知道他肯定不喜欢她,因为他当时正在打扫教堂,他在教堂工作,而她是反教会的

耶鲁公开课 - 1871年后的法国课程节选

"And so he then went back and worked on technology adaptation and designed very low-cost, small affordable solar panels with fitted bulbs, maybe one or two bulbs per household, made sure that the bulbs could be moved from room to room, depending where people wanted the light,".

VOA: standard.2009.12.18