The fons et origo of all reality, whether from the absolute or the practical point of view, is thus subjective, is ourselves. As bare logical thinkers, without emotional reaction, we give reality to whatever objects we think of, for they are really phenomena, or objects of our passing thought, if nothing more. But, as thinkers with emotional reaction, we give what seems to us a still higher degree of reality to whatever things we select and emphasize and turn to WITH A WILL.
William James,
The Principles of Psychology
Don Giovanni, you invited me to sup with you: I have come.
Da Ponte,
from Mozart’s Don Giovanni