There are not a lot of interesting words starting with this letter. Therefore I chose knowledge. Even as a newborn baby we start acquiring knowledge.
Knowledge can be useful in the right hands or an implement of destruction and evil in the wrong hands. With the devolution of advanced technology that includes human-like robots we will soon see if knowledge has crossed the line.
On the flip side there are more honorable people that use their knowledge to help the disabled like advanced treatment for spinal cord injuries.
We all know knowledge is power. Make sure your power will help humanity not destroy it.
Have a blessed day.