Henry were impliedly
and virtually revived[n].

[Footnote n: 4 Inst. 325.]

9. ACTS of parliament derogatory from the power of subsequent
parliaments bind not. So the statute 11 Hen. VII. c. 1. which directs,
that no person for assisting a king _de facto_ shall be attainted of
treason by act of parliament or otherwise, is held to be good only as
to common prosecutions for high treason; but will not restrain or clog
any parliamentary attainder[o]. Because the legislature, being in
truth the sovereign power, is always of equal, always of absolute
authority: it acknowleges no superior upon earth, which the prior
legislature must have been, if it's ordinances could bind the present
parliament. And upon the same principle Cicero, in his letters to
Atticus, treats with a proper contempt these restraining clauses which
endeavour to tie up the hands of succeeding legislatures. "When you
repeal the law itself, says he, you at the same time repeal the
prohibitory clause, which guards against such repeal[p]."

[Footnote o: 4 Inst. 43.]

[Footnote p: _Cum lex abrogatur, illud ipsum abrogatur, quo non eam
abrogari oporteat._ _l._ 3. _ep._ 23.]

10. LASTLY, acts of parliament that are impossible to be performed are
of no validity; and if there arise out of them collaterally any absurd
consequences, manifestly contradictory to common reason, they are,
with regard to those collateral consequences, void. I lay down the
rule with these restrictions; though I know it is generally laid down
more largely, that acts of parliament contrary to reason are void. But
if the parliament will positively enact a thing to be done which is
unreasonable, I know of no power that can control it: and the examples
usually alleged in support of this sense of the rule do none of them
prove, that where the main object of a statute is unreasonable the
judges are at liberty to reject it; for that were to set the judicial
power above that of the legislature, which would be subversive of all
government. But where some collateral matter arises out of the general
words, and happens to be unreasonable; there the judges are in decency
to conclude that this consequence was not foreseen by the parliament,
and therefore they are at liberty to expound the statute by equity,
and only _quoad hoc_ disregard it. Thus if an act of parliament gives
a man power to try all causes, that arise within his manor of Dale;
yet, if a cause should arise in which he himself is part