Thumb Will, Logic & Personality.
Tells the will power and logic sense of a person. Need to compare to the two section, which ever is bigger in surface area will be dominating.
Thumb Position Much can be read into the position of the thumb — where it sits in the hand. According to The Study of Palmistry, the following qualities can be determined by where the thumb is situated on the hand
Too high : Denotes idiocy (especially if the thumb is also short and ill-shaped.)
High : Lack of adaptability. Meanness in money matters.
Low : Generosity, intelligence.
Normal : No specific meaning; the meaning can instead be derived by the size and shape of the thumb. Close to the fingers: Avarice ( Extremely Strong desire for money and possessions) Away from the fingers: Spendthrift disposition