首先第一件是，坚持智慧是必须的。

First, there is the insistence that wisdom is necessary.

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首先第一步就是要找到热门的商业机遇。

Finding the hot business opportunity is the first step.

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首先第一步就是尽量减少我们自己行动的环境足迹。

This can start with minimizing the environmental footprint of our own operations.

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So, if we want to think about what the first ionization energy is of boron, what you want to do is write out the electron configuration, because then you can think about where it is that the electron's coming out of.

如果我们要考虑,硼的第一电离能，你首先要做的是写出它的电子排布，因为在这之后,你才能知道拿走的是哪里的电子。

麻省理工公开课 - 化学原理课程节选

Because it came from optics, you know, rays of sunlight and so on And in fact, even when we first started pulling synthetic fiber, the first synthetic fiber cellulose was referred to as ray on, because it looked like a ray that was being pulled.

因为它源自光学，比如太阳光线等等,实际上，及时当我们首先开始抽出,人造纤维，第一根人造纤维的纤维素,叫做光线，因为那条在被抽出的纤维素,看起来像是一道光线。

麻省理工公开课 - 固态化学导论课程节选

The first one is, first impressions matter a lot.

首先，第一印象非常重要。

耶鲁公开课 - 心理学导论课程节选