Talk:Topology/Manifolds/Categories of Manifolds

Motivation
To explain the motivation for this entry – the notion of “forgetting structure” and “admitting a structure” is fundamental to how Geometric Topologists understand the various kinds of manifolds and their relations: this is “one way to organize your thinking about manifolds”.
 * —Nils von Barth (nbarth) (talk) 02:14, 7 December 2009 (UTC)