The Bridling of Pegasus

What may be called the first principles of poetry having thus been propounded, without any necessity for reaffirming them in the investigation of other conclusions yet to be reached, I may move on to what I imagine will be less familiar and perhaps more original in the search for "The Essentials of Great Poetry." If we carefully observe the gradual development of mental power in human beings, irrespectively of any reference to poetry, but as applied to general objects of human interest, we shall find that the advance from elementary to supreme expansion of mental power is in the following order of succession, each preceding element in mental development being retained on the appearance of its successor: (1) Perception, vague at first, as in the newly born, gradually becoming more definite, along with desires of an analogous kind; (2) Sentiment, also vague at first, but by degrees becoming more definite, until it attaches itself to one or more objects exclusively; (3) Th