13And I applied my heart to seek out and examine by wisdom concerning all things that are done under heaven, for God has given to the sons of men an evil trouble to be troubled therewith.
14I beheld all the works that were wrought under the sun; and, behold, all were vanity and waywardness of spirit.
15That which is crooked cannot be made straight: and deficiency cannot be numbered.
16I spoke in my heart, saying, Behold, I am increased, and have acquired wisdom beyond all who were before me in Jerusalem: also I applied my heart to know wisdom and knowledge.
17And my heart knew much—wisdom, and knowledge, parables and understanding: I perceived that this also is waywardness of spirit.
18For in the abundance of wisdom is abundance of knowledge; and he that increases knowledge will increase sorrow.