This passage points out certain characteristics of the fool, a term which occurs so frequently in the book of Proverbs that we must try to conceive clearly what is to be understood by it. The difficulty of forming a distinct conception arises from the fact that there are three different words, with different shades of meaning, all rendered by the one English expression, fool or folly. For want of carefully distinguishing these delicate varieties of the original, some of the proverbs appear in English tautological and almost meaningless. We must try then to separate and to understand these several terms. The Hebrew word which most frequently occurs in the book to designate fool, אֶוִיל, together with its derivative, which is the usual word for folly, אִוֶּלֶת, signifies weakness. We are to think of that ignorant, inconsiderate, sanguine, and self-confident temper which eschews counsel, which will have its own way, which declines to be governed by reason, which forms fond expectations and baseless hopes, and which is always sure that everything will turn out according to its wish, though it takes no means to secure the desired result. Perhaps the simplest way of describing the habit of mind and the type of character intended by the Hebrew is to use the word _infatuation_. This would not do as a translation in all the passages where it occurs, but it will serve to point out the underlying idea. The word which comes next in frequency, כְּמִיל,--the word used uniformly throughout the particular passage before us,--has at its root the notion of grossness, the dull and heavy habit of one whose heart has waxed fat, whose ears are slow to hear, and whose higher perceptions and nobler aspirations have succumbed to the sensual and earthly nature. We have to think of moral, as well as mental, stupidity, of insensibility to all that is true and good and pure. The fool in this sense is such a dullard that he commits wickedness without perceiving it,[638] and utters slanders almost unconsciously;[639] he does not know when to be silent;[640] whatever is in him quickly appears,[641] but when it is known it is very worthless;[642] nor has he the sense to get wisdom, even when the opportunity is in his hand;[643] his best advantages are quickly wasted and he is none the better.[644] Perhaps the English word which best fits the several suggestions of the Hebrew one is _senseless_.