Page:Treatise of Human Nature (1888).djvu/470

448  or a different turn of thought, may change even the sensation of a passion; and this may in general account for all the particular sub-divisions of the other affections, as well as of fear. Love may shew itself in the shape of tenderness, friendship, intimacy, esteem, good-will, and in many other appearances; which at the bottom are the same affections, and arise from the same causes, tho' with a small variation, which it is not necessary to give any particular account of. 'Tis for this reason I have all along confin'd myself to the principal passion.

The same care of avoiding prolixity is the reason why I wave the examination of the will and direct passions, as they appear in animals; since nothing is more evident, than that they are of the same nature, and excited by the same causes as in human creatures. I leave this to the reader's own observation; desiring him at the same time to consider the additional force this bestows on the present system. 

methinks we have been not a little inattentive to run over so many different parts of the human mind, and examine so many passions, without taking once into the consideration that love of truth, which was the first source of all our enquiries. 'Twill therefore be proper, before we leave this subject, to bestow a few reflections on that passion, and shew its origin in human nature. 'Tis an affection of so peculiar a kind, that 'twoud have been impossible to have treated of it under any of those heads, which we have examin'd, without danger of obscurity and confusion.

Truth is of two kinds, consisting either in the discovery of the proportions of ideas, consider'd as such, or in the conformity of our ideas of objects to their real existence. 'Tis certain, that the former species of truth, is not desir'd merely 