All rules for study are summed up in this one: learn only in order to create.
On University Studies (1803). Cited by Patrick Dunleavy, Authoring a PhD (Basingstoke: Hampshire: Palgrave Macmillan, 2003), p. vi.
The fear of speculation, the ostensible rush from the theoretical to the practical, brings about the same shallowness in action that it does in knowledge. It is by studying a strictly theoretical philosophy that we become most acquainted with Ideas, and only Ideas provide action with energy and ethical significance.Friedrich Schelling