Verse Comparison: Ecclesiastes 7:29
American Standard Version
Behold, this only have I found: that God made man upright; but they have sought out many inventions.
Amplified® Bible
Behold, this is the only [reason for it that] I have found: God made man upright, but they [men and women] have sought out many devices [for evil].
Contemporary English Version
I did learn one thing: We were completely honest when God created us, but now we have twisted minds. 
Darby English Version
Only see this which I have found: that God made man upright, but they have sought out many devices.
Good News Bible
This is all that I have learned: God made us plain and simple, but we have made ourselves very complicated. 
King James Version
Lo, this only have I found, that God hath made man upright; but they have sought out many inventions.
New American Standard Bible
"Behold, I have found only this, that God made men upright, but they have sought out many devices."
New International Version
This only have I found: 
 God made mankind upright, 
 but men have gone in search of many schemes."
New King James Version
Truly, this only I have found: 
 That God made man upright, 
 But they have sought out many schemes."
N.A.S.B. in E-Prime
"Behold, I have found only this, that God made men upright, but they have sought out many devices." 
Revised Standard Version
Behold, this alone I found, that God made man upright, but they have sought out many devices.
Young's Literal Translation
See, this alone I have found, that God made man upright, and they -- they have sought out many devices.