However novel it may appear, I shall venture the assertion that until women assume the place in society which good sense and good feeling alike assign to them, human improvement must advance but feebly. It is in vain that we would circumscribe the power of one half of our race, and that half by far the most important and influential. If they exert it not for good they will for evil, if they advance not knowledge they will perpetuate ignorance. Let women stand where they may in the scale of improvement, their position decides that of the race.

Lecture II: Of Free Inquiry, considered as a Means for obtaining Just Knowledge - A Course of Popular Lectures (1829)