Mary Shepherd is 'having a moment' and I am out of sympathy. Yes, I agree that many women have been written out of the history of philosophy because the history is written by men. I agree that it is worth our while to reverse this trend and recover the contributions of neglected women where we can. But Mary Shepherd, an early 19th century British thinker best known for an essay on the relation between cause and effect, doesn't really fill the bill here. In response to Hume, Shepherd wrote thus: "We cannot imagine a beginning of existence to be wholly unconnected with any thing that went before it; and this is sufficient to refute the notion, that causes and effects are only conjunctions, or sequences observed by the experience of mankind." She thus infers the necessity of causal relations from our inability to imagine the contrary. This sort of thing reminds me of the scenes in The Princess Bride, where the bad guy Vizzini keeps assuring his confederates that ...