Three others among Locke's writings are regarded as classical: _On the Reasonableness of Christianity_, and _On Education_, and his _Letters on Toleration_. _The Reasonableness of Christianity_ (1695) is from one point of view an endeavour to render Christianity reasonable by eliminating its corruptions; from another an attempt to establish it on the basis of fulfilled prophecy and miracle. In both respects it was admirably adapted to the prevalent sentiment of Locke's own day, and, although warmly attacked by Stillingfleet, exerted a great influence upon the theology of the eighteenth century. In our time the point of view has shifted so far as to expose Locke to the full weight of Dr. Martineau's terse criticism, 'The affidavit has become the brief.' Its historical importance, however, can never be impaired, any more than that of the admirable _Letters on Toleration_, which seem commonplace because they are now esteemed irrefragable. It was otherwise in his own time, and for long afterwards. Their principal literary defects are that they are too polemical, and too long. Of all Locke's works, _Some Thoughts concerning Education_ is perhaps the most universally approved, and it is in truth a golden treatise, the very incarnation of good sense and right feeling; and more useful in its own time than it can be now that the errors which Locke especially assailed have become contrary, instead of congenial, to the general spirit of the age. The prevailing tone, the confidence in human nature rightly treated, the abhorrence of the merely arbitrary and despotic, render the work an epoch in the history of culture, and, compared with the coarse maxims of a Defoe, or even the _Whole Duty of Man_'s exclusive reliance upon authority, show how greatly Locke was beyond his contemporaries in enlightenment and the genuine spirit of humanity. The insight and penetration into children's characters are surprising in a man who had no children of his own, or much direct concern with the education of the children of others. They prove that Locke must have been a most careful and accurate observer. If there is a fault in the treatise, it is that the range of view is not always sufficiently wide, and that the author's precepts are too exclusively propounded with reference to the individual, and too little with a view to the general advantage of society. The disuse of Latin composition, for example, would have done little personal harm to the majority of the individual boys of whom Locke is thinking; but, in his day at all events, would have lowered the standard of culture throughout Europe. In general, however, Locke's remarks are characterized by the soundest common sense; and there is perhaps no other production of the age so thoroughly in harmony with its pervading spirit.