表达 “knowledge is power” 用来比喻 “多掌握知识、接受更多教育，能够增加某人成功的概率”，即所谓的 “知识就是力量”。

例句
Barbara wanted to work in marketing. She’s taking a course to help her get a new job. Knowledge is power!
芭芭拉想在市场营销行业工作。她正在修读一门相关课程，来帮助她找到新工作。正所谓：知识就是力量！

Knowledge is power. You need to study if you want to get ahead in life.
知识就是力量。你要是想出人头地就得好好学习。

We were unsure how to fix the computer, but we looked on the internet to learn more. Knowledge is power!
我们不确定该如何修理这部电脑，但我们上网查了资料自学。知识就是力量嘛！