Genuine knowledge comes from practice.

实践出真知。

《新英汉大辞典》

All genuine knowledge originates in direct experience.

一切真知都是从直接经验发源的。

《新英汉大辞典》

Facts taught us that genuine knowledge comes from practice.

事实告诉我们：实践出真知。

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Best Buy had my back and I, along with thousands of others, appreciated the genuine knowledge and expertise.

FORBES: Eleven Brands to Watch in 2011

But calls to stick it to the rich must be balanced with genuine knowledge about what most rich people have already paid.

FORBES: The Hidden Taxation of Wealthy Americans

EU-funded seminars constitute a third form of bad welfare and a waste of talent because in most cases they recycle and disseminate public information and knowledge providing income for both, those who give them and those who take them-often the right political clientele-rather than a vehicle for defusing and disseminating genuine knowledge.

FORBES: Behind the Eurozone Stagnation: Bad Welfare