Ecclesiastes 10:13-15

Revised Standard Version Catholic Edition

¹³ The beginning of the words of his mouth is foolishness,
    and the end of his talk is wicked madness.
¹⁴ A fool multiplies words,
    though no man knows what is to be,
    and who can tell him what will be after him?
¹⁵ The toil of a fool wearies him,
    so that he does not know the way to the city.