that every one, who is already flushed with a good opinion of himself, should rather study how to run away from it, than how to converse with his own heart.
But farther. If a man were both able and willing to retire into his own heart, and to set apart some portion of the day for that very purpose; yet he is still disabled from passing a fair and impartial judgment upon himself, by several difficulties, arising partly from prejudice and prepossession, partly from the lower appetites and inclinations. And,
First, That the business of prepossession may lead and betray a man into a false judgment of his own heart. For we may observe, that the first opinion we take up of any thing, or any person, doth generally stick close to us; the nature of the mind being such, that it cannot but desire, and consequently endeavour to have some certain principles to go upon, something fixed and unmoveable, whereon it may rest and support itself. And hence it cometh to pass, that some persons are with so much difficulty brought to think well of a man they have once entertained an ill opinion of: and, perhaps, that too for a very absurd and unwarrantable reason. But how much more difficult then must it be for a man, who taketh up a fond opinion of his own heart long before he hath either years or sense enough to understand it, either to be persuaded out of it by himself, whom he loveth so well, or by another, whose interest or diversion it may be to make him ashamed of himself! Then,
Secondly, As to the difficulties arising from the inferiour appetites and inclinations; let any man look into his own heart, and observe in how different a light, and under what different complexions, any two
sins
