Insight

Insight: 
noun
an instance of apprehending the true nature of a thing, especially through intuitive understanding
penetrating mental vision or discernment; faculty of seeing into inner character or underlying truth.

Jackass:
 noun

a male donkey.
a contemptibly foolish or stupid person; dolt; blockhead; The dumb jackass on this image getting run over for choosing to take a selfie in the middle of the road during a bike race.