The sharper the tools, the more likely you are to cut yourself if you don’t know what you’re doing.
In the first place, what on earth has this to do with photography? If you get a Really Good Camera, you're actually more likely to make bad or unsatisfying pictures? Huh? This is something that sounds wise, but it actually ridiculous.
As a guy who's actually used sharp tools of various sorts, I would also like the record to show that this is also completely false in a literal sense. You are much less likely to cut yourself with very sharp tools.