In the Parliament of 1575 Peter made a stiff speech in defence of the rights and privileges of the Commons. It is on record. "I find," said he, "within a little volume these words in effect: 'Sweet is the name of liberty, but the thing itself a value beyond all estimable treasure.' So much the more it behooveth us to take great care lest we, contenting ourselves with the sweetness of the name, lose and forego the thing. … Two things do great hurt in this place. The one is a rumor which runneth about saving, 'Take heed what you do: the queen liketh not such a matter. Whoso preferreth it she will be offended with him.' The other, a message is brought into the House either commanding or inhibiting, very injurious to the freedom of speech and consultation. I would to God these rumors and messages were buried in hell; for wicked they are: the Devil was the first author of them, from whom proceedeth nothing but wickedness."
And so on he went reprobating the venal flatterers of royalty who "make traitorous, sugared speeches," "send to her Majesty a melting heart that will not stand for reason," and who blindly follow their leaders instead of voting "as the matter giveth cause."
Peter was not permitted to finish his speech, but was given into the custody of the sergeant-at-arms, pending an examination of the delinquent by a committee of the House."
His apology is recorded: "I heartily repent me that I have hitherto held my peace in these causes, and I do promise you all, if God forsake me not, that I will never during my life hold my tongue if any message is sent in wherein the liberties of Parliament are impeached; and every one of you ought to repent you of these faults, and amend them."
