A HUMAN BEING CAN ONLY CONCEIVE ANOTHER HUMAN BEING AND NOT A SIMPLY BLUNCH OF CELLS

One month after conception, a human being is one-sixth of an inch long. The tiny heart has already begun beating for a week, and the arms, legs, head, and brain have already begun to take shape. At two months, the child already fits in a nutshell: curled up, the person measures little more than an inch. Inside your closed fist, the person would be invisible, and you could squash them without intending to, or even realizing it. But if you open your hand, the person is practically complete, with hands, feet, head, internal organs, brain, all in place. All they need is to grow. Looking even more closely with a standard microscope, you may be able to see their fingerprints. Everything needed to establish their identity is already in place.

-Jerome Lejeune, Modern Geneticist