NET
11 God has made everything fit beautifully in its appropriate time, but he has also placed ignorance in the human heart so that people cannot discover what God has ordained, from the beginning to the end of their lives.
Darby
11 He hath made everything beautiful in its time; also he hath set the world in their heart, so that man findeth not out from the beginning to the end the work that God doeth.
KJV
11 He hath made every [thing] beautiful in his time: also he hath set the world in their heart, so that no man can find out the work that God maketh from the beginning to the end.