> It is often said that Linux is more stable then Windows, well BSD could be considered like Granite compared to Linux

Not your quote, but I would add: ... and think of OpenBSD to FreeBSD as diamond to granite, 'rock solid' is understatement :)

"We have fixed many simple and obvious careless programming errors in code and only months later discovered that the problems were in fact exploitable." https://www.openbsd.org/security.html