These two general replies to strictures on the new constitution are in themselves of no worth whatever. They deserve examination for two reasons only. They are, in various shapes, put forward by politicians of eminence, they exhibit further in a clear form a defect which mars a good deal of Gladstonian reasoning. Ministerialists seem to think that arguments good for the purpose of conservatism are available for the purpose of innovation. This is an error. A conservative reasoner may urge the uncertainty of all prevision, or the fact that the actual constitution, though theoretically absurd or imperfect, works well, as reasons of some weight, though not of overwhelming weight, for leaving things as they are, but it must puzzle any sensible man to see how either the uncertainty of prevision or the fair working of existing institutions can be twisted into reasons for taking a political leap in the dark. Let us dismiss then objections which as they are fatal to all criticism are in reality ineffective against any criticism of our new constitution. When this is done it will be found that the Gladstonian pleas in favour of Home Rule, for such are in reality their apologies for the new constitution, may be brought under two heads. They are intended to show, first, that the concession of parliamentary independence to Ireland is a necessity, and, secondly, that at worst it involves no danger.[109] A. _Necessity for Home Rule_. That the concession of Home Rule to Ireland is a necessity, forms the implied, if not always the asserted, foundation of the case in favour of Gladstonian policy.