He recognized the agreeable, philosophizing voice with pleasure.
The origin of the heresy is to be sought in the Greek, Alexandrine and Oriental philosophizing about the imperfection or rather the essential impurity of matter.
Trendelenburg's philosophizing is conditioned throughout by his loving study of Plato and Aristotle, whom he regards not as opponents but as building jointly on the broad basis of idealism.
But such a temper of mind is much more akin to scepticism than to mysticism; it is characteristic of those who either do not feel the need of philosophizing their beliefs, or who have failed in doing so and take refuge in sheer acceptance.
It is not unfair to connect the apparent failings of Schelling's philosophizing with the very nature of the thinker and with the historical accidents of his career.