[ Humility/Hubris ]

A good engineer, with ethics and professionalism dialled in, will have a good mix of hubris and humility. 

Hubris is having the confidence to have a viewpoint, decision or judgement, to the point of taking a stand even when it might cause trouble.  Hubris is standing firm, particularly when it is right to stand firm.

But in the face of that hubris, is the need to show humility as well.  An engineer who stands firm even when the information has changed isn’t showing humility, that’s just being stubborn. Humility allows you to confidently say, “let me think about this again”.