电流概念的形成是电学理论发展中最重要的步骤。
The very essence of the creative is its novelty, and hence we have no standard by which to judge it.
创造性的本质在于它的新颖性，因此我们没有标准来判断它。
我写的每首歌都像是我的孩子。我培养它，我爱它，我把它送到世界上，希望它能找到自己的路。
We are in the business of helping our customers succeed, not just selling them products.
I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.
永远不要低估一个强大团队的力量；团结一致，我们可以实现不可能的事。