Specific knowledge is knowledge you cannot be trained for.

The popular wording ‘Specific knowledge is knowledge you cannot be trained for’ is a compression: it does not appear in this form on the page searched (nav.al/rich); what Naval says there is the passage in original. Not traced further.

Naval is explaining the first tweet on skills, ‘Arm yourself with specific knowledge, accountability and leverage’. Specific knowledge, he says, is the hardest idea in the tweetstorm: the thing that lets you, and not anyone else, get paid, because anything a class can teach can be mass-produced, even programmed.

What makes you hard to replace is what school cannot teach; it comes from curiosity, temperament and early experience.

Education

• No one can choose a beneficial direction in life without hope that change for the better is possible. William W. Purkey
• While everything in life adds to, or detracts from, human success or failure, nothing is more important in life than people. It is the people who create a respectful, optimistic, trusting and intentional society. William W. Purkey
• People possess untapped potential in all areas of human endeavor. The uniqueness of human beings is that no clear limits to potential have been discovered. William W. Purkey
• Wealth is assets that earn while you sleep.
• A student is the most important person ever in this school. William W. Purkey

• nav.al/rich

“Specific knowledge is knowledge you cannot be trained for.” Attributed to Naval Ravikant. Not in these words. The idea is in How to Get Rich (without getting lucky) (2018), “Arm Yourself With Specific Knowledge” (subsection “Specific knowledge can’t be trained”), nav.al/rich. Quotogeny, https://quotogeny.com/q/specific-knowledge-cannot-be-trained/ (checked 25 October 2026).

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