It effected a revolution in his mode of thinking; so completely did the Kantian doctrine of the inherent moral worth of man harmonize with his own character, that his life becomes one effort to perfect a true philosophy, and to make its principles practical maxims. At first he seems to have thought that the best method for accomplishing his object would be to expound Kantianism in a popular, intelligible form.
It was desired to secure an exponent of Kantianism, and none seemed so highly qualified as the author of the Critique of Revelation.
In taking root in England idealism had to contend against the traditional empiricism represented by Mill on the one hand and the pseudo-Kantianism which was rendered current by Mansel and Hamilton on the other.
2 It may be as well to add that the sceptical side of Kantianism is mainly confined to the Critique of Pure Reason, but this side of Kantian thought has been most widely influential.
The remarks made above would not apply to the coherent system of idealism which may be evolved from Kant's writings, and which many would consider alone to deserve the name of Kantianism or Criticism.
To some extent Berkeley removed this radical inconsistency, but in his philosophical work it may be said with safety there are two distinct aspects, and while it holds of Locke on the one hand, it stretches forward to Kantianism on the other.
Fries's point of view in philosophy may be described as a modified Kantianism, an attempt to reconcile the criticism of Kant and Jacobi's philosophy of belief.
This doctrine is derived from Berkeley and Hume on the one hand and from Kantianism on the other, and embodies the principle that nothing can exist for the mind save itself.