There was a knowing sharpness behind his eyes; signs of a soul wise and a little bit mercurial.
I looked into his eyes that looked wise and mercurial, but knowing him I knew this to be untrue.
mnli hypothesis: I looked into his eyes that looked wise and mercurial, but knowing him I knew this to be untrue. premise: There was a knowing sharpness behind his eyes; signs of a soul wise and a little bit mercurial.