Learning about these sorts of things in history can only give someone a surface level understanding of what slave women faced. In a novel with real characters, it becomes more powerful and we see the lasting impact certain decisions have. The novel asks pressing questions about a mother's love and her boundaries and limitations. Many black mothers in this country with children around this time probably had to contemplate these things. However, these questions are not bounded by time and place. On a much smaller scale, parents make sacrifices for their children all the time so that their children don't have to suffer or live a harder life. On page 163, Sethe says "I couldn't let all that go back to where it was, and I couldn't let her nor any of them live under schoolteacher". She wants what is best for her child and is willing to do something that may make it tough for her to live with herself. On page 165, she says "I stopped him...I took my babies and put them where they would be safe. It is my job to know what is and to keep them away from what I know is terrible. I did that".
Source: The Women's Review of Books, Vol. 5, No. 6 (Mar., 1988), pp. 4-5