Voluntarism is "any metaphysical or psychological system that assigns to the will (Latin: voluntas) a more predominant role than that attributed to the intellect",[1] or equivalently "the doctrine that will is the basic factor, both in the universe and in human conduct".
The term voluntarism was introduced by Ferdinand Tönnies into the philosophical literature and particularly used by Wilhelm Wundt and Friedrich Paulsen.
This putting out of the drive–intention–vital dynamics later influenced Friedrich Nietzsche (will to power), Philipp Mainländer (will to die), Eduard von Hartmann, Julius Bahnsen and Sigmund Freud (will to pleasure).
If one is a voluntarist with respect to beliefs, it is coherent to simultaneously feel very certain about a particular proposition P and assign P a very low subjective probability.
This view which was propounded by theorists like Thomas Hobbes, Jean-Jacques Rousseau and many members of the German idealist tradition understands political authority as emanating from a will.