The faculty, act, or product of speaking
A formal, lengthy exposition of a topic
To engage in spoken exchange
Martha said nothing during my discourse, not helping my confidence.
I finished my discourse with a request for words of wisdom.
No barrier of the senses shuts me out from the sweet, gracious discourse of my book-friends.
In the Discourse of Method Descartes had sketched the main points in his new views, with a mental autobiography which might explain their origin, and with some suggestions of as to their applications.
He simply sets the discussion aside as too difficult for a preliminary discourse, and not strictly relevant to a purely logical inquiry.