diversity, between royal and common descents, will be better understood hereafter, when we examine the nature of inheritances in general. [Footnote a: _in vit. Agricolae._] 3. THE doctrine of _hereditary_ right does by no means imply an _indefeasible_ right to the throne. No man will, I think, assert this, that has considered our laws, constitution, and history, without prejudice, and with any degree of attention. It is unquestionably in the breast of the supreme legislative authority of this kingdom, the king and both houses of parliament, to defeat this hereditary right; and, by particular entails, limitations, and provisions, to exclude the immediate heir, and vest the inheritance in any one else. This is strictly consonant to our laws and constitution; as may be gathered from the expression so frequently used in our statute book, of "the king's majesty, his heirs, and successors." In which we may observe, that as the word, "heirs," necessarily implies an inheritance or hereditary right, generally subsisting in the royal person; so the word, "successors," distinctly taken, must imply that this inheritance may sometimes be broke through; or, that there may be a successor, without being the heir, of the king. And this is so extremely reasonable, that without such a power, lodged somewhere, our polity would be very defective. For, let us barely suppose so melancholy a case, as that the heir apparent should be a lunatic, an ideot, or otherwise incapable of reigning: how miserable would the condition of the nation be, if he were also incapable of being set aside!--It is therefore necessary that this power should be lodged somewhere: and yet the inheritance, and regal dignity, would be very precarious indeed, if this power were _expressly_ and _avowedly_ lodged in the hands of the subject only, to be exerted whenever prejudice, caprice, or discontent should happen to take the lead. Consequently it can no where be so properly lodged as in the two houses of parliament, by and with the consent of the reigning king; who, it is not to be supposed, will agree to any thing improperly prejudicial to the rights of his own descendants. And therefore in the king, lords, and commons, in parliament assembled, our laws have expressly lodged it.