Every man is a revolutionist concerning the thing he understands. For example, every person who has mastered a profession is a sceptic concerning it, and consequently a revolutionist.

Summary

This quote highlights the idea that individuals who deeply understand a specific subject or field are often the ones who challenge or question existing norms and systems within that domain. When someone gains expertise in a particular profession or discipline, they become aware of its limitations, flaws, and areas for improvement. This skepticism drives them to challenge the status quo and seek innovative ways to revolutionize that field. Ultimately, the quote suggests that true revolutionaries are not always external forces but rather individuals who have an intimate understanding of a subject and who strive to transform it for the better.