Idly searching around the Interweb thingy to verify my belief that Cicero did not first come up with "Nemo me impune lacessit" I came across this great epigram:
Nihil tam absurde dici potest, quod non dicatur ab aliquo philosophorum. (There is nothing so absurd but some philosopher has said it).
It occurs to me that Cicero was some two millennia ahead of his time - especially when I contemplate the idiocies of N Chomsky and others of that stripe. These days though one might modify it slightly and get even more coverage:
Nihil tam absurde conscribi potest, quod non conscribatur ab aliquo bloggerorum. (There is nothing so absurd but some blogger has written it).