As others pointed out it's (mis)quoting shakespeare's Julius Caesar. It is worth mentioning that I hope one day we (HN?) will be quoting code - that some portions of code (maybe elegant implementations of encryption or quadratic voting) will become canon just as shakespeare is taught in schools.
It's always been a worry that if more people can quite shakespeare than do long division or understand a car engine then we will have "uninformed" decisions.
I am dubious about that - I think of elections are meaningful, the populace takes them seriously and self informs to a level they are happy with (!) but anyway I like the idea that some of the Linux Kernel maybe in peoples heads enough to pop up in middle age