Well-meaning, helpful, good-natured attitudes of mind have not come to be honored on account of their usefulness, but because they are states of richer souls that are capable of bestowing and have their value in the feeling of the plenitude of life.
Whoever you are, or whatever it is that you do, when you really want something, it's because that desire originated in the soul of the universe. It's your mission on earth.
The virtue of a faculty is related to the special function which that faculty performs. Now there are three elements in the soul which control action and the attainment of truth: namely, Sensation, Intellect, and Desire. Of these, Sensation never originates action, as is shown by the fact that animals have sensation but are not capable of action.