5).

The idea of "development" in Bruno has been studied by Mariupolsky (Zur Geschichte des Entwicklungsbegriffs in Berner Studien, Bd.vi.

1897), who pointed out the influence of Stoicism on his thought.] In particular branches of science an innovation was beginning which heralded a radical revolution in the study of natural phenomena, though the general significance of the prospect which these researches opened was but vaguely understood at the time.

The thinkers and men of science were living in an intellectual twilight.

It was the twilight of dawn.