Friedrich Schelling Quote

How both the objective world accommodates to presentations in us, and presentations in us to the objective world, is unintelligible unless between the two worlds, the ideal and the real, there exists a pre-determined harmony. But this latter is itself unthinkable unless the activity, whereby the objective world, is produced, is at bottom identical with that which expresses itself in volition, and vice versa.

System of Transcendental Philosophy, 1800