For in much wisdom is much vexation, and those who increase knowledge increase sorrow.
And he said to humankind, ‘Truly, the fear of the Lord, that is wisdom; and to depart from evil is understanding.’ ”
Then I said to myself, “What happens to the fool will happen to me also; why then have I been so very wise?” And I said to myself that this also is vanity.
For all their days are full of pain, and their work is a vexation; even at night their minds do not rest. This also is vanity.
Do not be too righteous, and do not act too wise; why should you destroy yourself?