There's no doubt it takes an unbelievable amount of strength and courage to raise kids on your own. Here, we're paying homage to the women of the world who do exactly that by sharing our favorite single mom quotes and sayings about single motherhood. These inspiring words from celebrities, activists, politicians, and musicians will remind all of the solo mothers that they aren't alone—and that they are, by definition, basically superhuman. Whether you need a Mother's Day quote or otherwise motivational motherhood quote for a sweet card or simply are hoping to inspire yourself (in which case, we'd say to look to Diane Keaton: "The loves of my life are my children and my mother. I don't feel as if I need a man"), there's something here for everyone. We've even got a few mother-daughter quotes and mother-son quotes. The most important thing to remind yourself or your mother is that she may be single, but she's not alone. After all, as Kate Winslet put it, "You always have to carry on. And you can, because you have to."