Book, Paragraph

 1  IV,  4 |        necessarily either hard or soft. Hard is that the surface
 2  IV,  4 |       does not yield into itself; soft that which does yield but
 3  IV,  4 |       water, for instance, is not soft, for its surface does not
 4  IV,  4 |           are absolutely hard and soft which satisfy the definition
 5  IV,  4 |           to one another hard and soft are indefinable, because
 6  IV,  4 | determines that which is hard and soft absolutely, and touch is
 7  IV,  4 |           which falls short of it soft.~
 8  IV,  5 |   boundary must be either hard or soft; for it either yields or
 9  IV,  5 |           solid is either hard or soft and these qualities are
10  IV,  6 |          with it. Bodies that are soft but not liquid do not thicken
11  IV,  9 |            Such bodies are either soft, like wax, where part of
12  IV,  9 |          are non-fissile. Nothing soft is fissile (by soft I mean
13  IV,  9 |       Nothing soft is fissile (by soft I mean absolutely soft and
14  IV,  9 |         by soft I mean absolutely soft and not relatively: for
15  IV,  9 |          itself may be relatively soft); nor are all hard things
16  IV,  9 |          crosswise.~Those hard or soft solids are apt to be cut
17  IV,  9 |      viscous when, being moist or soft, it is tractile. Bodies
18  IV,  10|      bodies some are liquid, some soft, some hard. The soft and
19  IV,  10|         some soft, some hard. The soft and the hard are constituted