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ESSAY II.
Of the Origin of Ideas.
Every one will readily allow, that there is a considerable Difference betwixt the Perceptions of the Mind, when a Man feels the Pain of excessive Heat or the Pleasure of moderate Warmth, and when he afterwards recalls to his Memory this Sensation, or anticipates it by his Imagination. These Faculties may mimick or copy the Perceptions of the Senses; but they never can reach entirely the Force and Vivacity of the original Sentiment. The utmost we say of them, even when they operate with greatest Vigour, is, that they represent their Object in so lively a Manner, that we could almost say we feel or see it: But, except the Mind be disorder'd by Disease or Madness, they never can arrive at such a pitch of Vivacity as to render these Perceptions altogether undistinguishable. All the Colours of Poetry, however splendid, can never paint natural Objects in such a manner as to make the Description be taken for a real Landskip. Themost
