“Let us hold our hands together as women for one woman's push cannot move the mountain but many women's push can move the mountain. Gone are the days when women were walking behind men. They should start walking in front.”

As quoted in The Great Illusion, 1900-1914, Oron J. Hale, Harper & Row (1971) p. 109
Undated

Vorkosigan Saga, Borders of Infinity (1989)

The Progress of Fifty Years (1893)
Context: Whatever the reason, the idea was born that women could and should be educated. It lifted a mountain load from woman. It shattered the idea, everywhere pervasive as the atmosphere, that women were incapable of education, and would be less womanly, less desirable in every way, if they had it. However much it may have been resented, women accepted the idea of their intellectual inequality. I asked my brother: "Can girls learn Greek?"

Source: The Golden Compass

Sec. 51; often paraphrased as: "A casual stroll through the lunatic asylum shows that faith does not prove anything".
The Antichrist (1888)

Too Busy Not to Pray (2008, InterVarsity Press)

Bryn Mawr Commencement Address https://books.google.com/books?id=QK6TYg32CocC&pg=PA160 (1986), in Dancing at the Edge of the World (1997), p. 160

The Notebooks of Leonardo da Vinci (1883), XX Humorous Writings

“A Dialogue with Simone de Beauvoir,” in Betty Friedan, It Changed My Life: Writings on the Women’s Movement, (New York: Random House, 1976), p. 397 https://books.google.com/books?id=iv4-Qy82BJ0C&pg=PA397&lpg=PA397.
General sources