This Bible contradiction is from the Infidels.org.
Proverbs 4:7 View context
Wisdom [is] the principal thing; [therefore] get wisdom: and with all thy getting get understanding.
Ecclesiastes 1:18 View context
For in much wisdom [is] much grief: and he that increaseth knowledge increaseth sorrow.
1 Corinthians 1:19 View context
For it is written, I will destroy the wisdom of the wise, and will bring to nothing the understanding of the prudent.