For just as the facial expression of an impassioned man penetrates those who look at it, naturally imprinting in them a passion similar to that exciting him, though the union between this man and those considering him be not very intense, thus, it seems to me, there is reason to believe that mothers are capable of imprinting in their unborn children all the same sensations by which they themselves are affected, and all the same passions by which they are agitated.