Thus in politics, too, ideas are sometimes proposed, discussed, rejected, or adopted, as it may happen, and sometimes they are shown to be unmeaning and impossible; sometimes they are true, but partially so, or in subordination to other ideas, with which, in consequence, they are as wholes or in part incorporated, as far as these have affinities to them, the power to incorporate being thus recognized as a property of life. Mr. Bentham's system was an attempt to make the circle of legal and moral truths developments of certain principles of his own;--those principles of his may, if it so happen, prove unequal to the weight of truths which are eternal, and the system founded on them may break into pieces; or again, a State may absorb certain of them, for which it has affinity, that is, it may develope in Benthamism, yet remain in substance what it was before. In the history of the French Revolution we read of many middle parties, who attempted to form theories of constitutions short of those which they would call extreme, and successively failed from the want of power or reality in their characteristic ideas. The Semi-arians attempted a middle way between orthodoxy and heresy, but could not stand their ground; at length part fell into Macedonianism, and part joined the Church. 5. The stronger and more living is an idea, that is, the more powerful hold it exercises on the minds of men, the more able is it to dispense with safeguards, and trust to itself against the danger of corruption. As strong frames exult in their agility, and healthy constitutions throw off ailments, so parties or schools that live can afford to be rash, and will sometimes be betrayed into extravagances, yet are brought right by their inherent vigour. On the other hand, unreal systems are commonly decent externally. Forms, subscriptions, or Articles of religion are indispensable when the principle of life is weakly. Thus Presbyterianism has maintained its original theology in Scotland where legal subscriptions are enforced, while it has run into Arianism or Unitarianism where that protection is away. We have yet to see whether the Free Kirk can keep its present theological ground. The Church of Rome can consult expedience more freely than other bodies, as trusting to her living tradition, and is sometimes thought to disregard principle and scruple, when she is but dispensing with forms. Thus Saints are often characterized by acts which are no pattern for others; and the most gifted men are, by reason of their very gifts, sometimes led into fatal inadvertences. Hence vows are the wise defence of unstable virtue, and general rules the refuge of feeble authority. And so much may suffice on the _unitive power_ of faithful developments, which constitutes their third characteristic. SECTION IV. FOURTH NOTE. LOGICAL SEQUENCE.