Book, Paragraph

 1   I,  1|       and colour constitute the essence of the various animals and
 2   I,  1|        either its matter or its essence; nature as essence including
 3   I,  1|       or its essence; nature as essence including both the motor
 4   I,  1|     olugos) as constituting the essence and real nature of things.
 5   I,  1|     possession of the notion of essence, nor of any definition of
 6   I,  3|         cannot present in their essence a common undifferentiated
 7   I,  3|    their blood is part of their essence.) From this it follows that
 8   I,  3|         must be elements of the essence, and not merely essential
 9   I,  3|    triangle and not part of its essence that its angles are equal
10   I,  3|         shall express the whole essence of a species. (In saying
11   I,  3|        can possibly express the essence of a species. Suppose, for
12   I,  3|        would duly represent his essence. But seeing that this is
13  II,  2| accidentally and not of its own essence, is very much the same thing
14 III,  6|         lung is a part of their essence, just as much as the presence
15 III,  6|      characters constitutes the essence of a bird.~