Ecclesiastes 1:17; Ecclesiastes 2:3; Ecclesiastes 2:12; Ecclesiastes 2:13; Ecclesiastes 7:25; Ecclesiastes 10:1; Ecclesiastes 10:13

17 And I gave my heart to know wisdom, and to know madness and folly: I perceived that this also is vexation of spirit.

3 I sought in mine heart to give myself unto wine, yet acquainting mine heart with wisdom; and to lay hold on folly, till I might see what was that good for the sons of men, which they should do under the heaven all the days of their life.

12 And I turned myself to behold wisdom, and madness, and folly: for what can the man do that cometh after the king? even that which hath been already done.

13 Then I saw that wisdom excelleth folly, as far as light excelleth darkness.

25 I applied mine heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:

1 Dead flies cause the ointment of the apothecary to send forth a stinking savour: so doth a little folly him that is in reputation for wisdom and honour.

13 The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.