 if the black bile which is cold dry and sour overwhelms him he should eat and drink everything that is moist and hot because if he does so his temperament will be balanced. whoever has a balanced temperament will be healthy and will avoid illness god willing.
وإذا بغت عليه المرة السوداء وهي باردة يابسة حامضة لزم من الطعام والشراب كل رطب حار فإنه إذا فعل اعتدل مزاجه، ومن اعتدل مزاجه لزمته الصحة وجانبه السقم بإذن الله.