The three excerpts that best reflect the central ideas presented in the speech are:
"It is an odious aristocracy; a hateful oligarchy of sex; the most hateful aristocracy ever established on the face of the globe...." - This excerpt highlights the speaker's strong condemnation of the inequality and discrimination faced by women, portraying it as an oppressive and unjust social structure.
"For any state to make sex a qualification that must ever result in the disfranchisement of one entire half of the people.... is therefore a violation of the supreme law of the land." - This excerpt emphasizes the argument that denying women the right to vote based on their gender is a violation of the fundamental principles of equality and the rights of all citizens.
"Are women persons? And I hardly believe any of our opponents will have the hardihood to say they are not." - This excerpt challenges the notion that women are not deserving of the same rights and recognition as men, asserting the personhood and inherent worth of women as equal members of society.
These excerpts collectively convey the central ideas of denouncing gender-based discrimination, advocating for women's suffrage, and asserting the equal rights and personhood of women.