For in much wisdom is much grief: and he that increaseth knowledge increaseth sorrow.
16I communed with mine own heart, saying, Lo, I am come to great estate, and have gotten more wisdom than all they that have been before me in Jerusalem: yea, my heart had great experience of wisdom and knowledge.
17And I gave my heart to know wisdom, and to know madness and folly: I perceived that this also is vexation of spirit.
18For in much wisdom is much grief: and he that increaseth knowledge increaseth sorrow.
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