60 Memory and Design Personal Identity We are so far identical with our ancestors and our con- temporaries that it is very rarely we can see anything that they do not see. It is not unjust that the sins of the fathers should be visited upon the children, for the children com- mitted the sins when in the persons of their fathers ; they ate the sour grapes before they were born : true, they have forgotten the pleasure now, but so has a man with a sick headache forgotten the pleasure of getting drunk the night before. Sensations Our sensations are only distinguishable because we feel them in different places and at different times. If we feel them at very nearly the same time and place we cannot distinguish them. Cobwebs in the Dark If you walk at night and your face comes up against a spider's web woven across the road, what a shock that thin line gives you ! You fristle through every nerve of your body. Shocks and Memory Memory is our sense that we are being shocked now as we were shocked then. Shocks Given matter conscious in one part of itself of a shock in another part (i.e. knowing in what part of itself it is shocked) retaining a memory of each shock for a little while after- wards, able to feel whether two shocks are simultaneous or in succession, and able to know whether it has been shocked much or little—given also that association does not stick to the letter of its bond—and the rest will follow. Design i There is often connection but no design, as when I stamp my foot with design and shake something down without