We must now consider the injustice which takes place in judgment on the part of counsel, and under this head there are four points of inquiry:

A[1] Whether an advocate is bound to defend the suits of the poor?

A[2] Whether certain persons should be prohibited from exercising the office of advocate?

A[3] Whether an advocate sins by defending an unjust cause?

A[4] Whether he sins if he accept a fee for defending a suit?