"Duality of thought" is the ability to hold 2 contrary thoughts in your head at the same time and entertain all possibilities before REACTING to situations. This concept will radically increase your depth as a man and attractiveness to women.  Grab Mark's Free Program: "The Approach Formula": http://www.CoachMarkSing.com/The-Approach-Formula Get 1 on 1 Coaching with Mark: http://www.MarkSingCoaching.com Contact Mark Directly: CoachMarkSing@Gmail.com Follow Mark on Instagram: https://www.instagram.com/coachmarksing/