"I have seen all the works that are done under the sun.
And, behold, all is vanity and vexation of spirit.
I communed with mine own heart, saying, 'Lo, I am come to great estate.
And I gave my heart to know wisdom, and to know madness and folly.
I perceived that this also is vexation of spirit.
For in such wisdom is much grief, and he that increases knowledge increases sorrow."