"We want to be a strong partner with the government and the people of Afghanistan, and I always say both because it is not either or it has to be both,"

VOA: standard.2009.11.18

So we know we always want to have our systems in as low an energy as possible, so it makes sense that a bond would happen any time we got a lower energy when we combine two atoms, versus when we keep them separate.

我们知道我们总是希望使我们的系统,处于能量尽可能低的状态，因此就应该有化学键产生,一旦我们合并两个原子之后体系的能量变得更低，相较于分开时。

麻省理工公开课 - 化学原理课程节选

Patience versus short term results and you actually want to have both of those in proper balances, and we're always kind of struggling.

耐心和短期的成果，实际上你,两者都想要，都想做好平衡，我们都在奋斗，都在努力。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

So what I want to tell you is we also always get the same bond order if we instead only deal with the valence electrons.

我想要说的是我们如果,只考虑价电子也可以得到相同的键序。

麻省理工公开课 - 化学原理课程节选

I always want to--modern football helmets which are monstrous-- I'm so old we used to play with leather ones without a face mask.

现代美式橄榄球的面具就跟怪兽一样的,我老了,我们小时候打球都是皮质头盔而且没有面具的

耶鲁公开课 - 古希腊历史简介课程节选

We don't always want to go and solve the Schrodinger equation, and in fact, once we start talking about molecules, I can imagine none of you, as much as you love math or physics, want to be trying to solve this Schrodinger equation in that case either. So, what Lewis structures allow us to do is over 90% of the time be correct in terms of figuring out what the electron configuration is.

我们并不想每次都去解薛定谔方程，而且实际上，一旦我们开始讨论分子，我可以想象,你们中没有一个人，不管你有多么热爱数学或物理，会想去解这种情况下的薛定谔方程,总之，路易斯结构能让我们,有超过，90%，的概率判断出正确的,电子排布。

麻省理工公开课 - 化学原理课程节选