There's a big difference between knowing and doing. Knowledge is useless without action.

知道和做之间有很大区别。知识是没有用的，如果没有行动的话。

youdao

Writing education, as one of the many, should follow the principle of "unity of knowing and doing".

写作教育既然是教育的一项科目，就必须遵循教育的普遍规律，并尊重写作的特殊性。

youdao

Objective: to find out the relation between the knowing and doing of hepatitis B patients and their medical expenses.

前言： 目的：为了解乙型肝炎病人知信行与疾病医疗费用的关系。

youdao

"I have been up on Obama for a long time. People in Chicago have been knowing Obama for the longest time, because him and his wife had been doing a lot of good things, trying to help out the neighborhoods."

VOA: standard.2010.02.24

It sounds too much like an excuse for knowing and doing precisely nothing about the situation.

BBC: Why eastern DR Congo is my favourite place in Africa

Other automakers are developing similar systems in the hope that, starting five years from now, roads and highways will be information-rich networks, with cars knowing what other cars are doing and responding intelligently.

FORBES: Magazine Article

How wide is your knowing-doing gap, and how actively are you working to close it?

FORBES: How To Tap Into Your Inner Leader