If our intellectual part is common, the reason also, in respect of which we are rational beings, is common: if this is so, common also is the reason which commands us what to do, and what not to do; if this is so, there is a common law also; if this is so, we are fellow-citizens; if this is so, we are members of some political community; if this is so, the world is in a manner a state. For of what other common political community will any one say that the whole human race are members? And from thence, from this common political community comes also our very intellectual faculty and reasoning faculty and our capacity for law; or whence do they come? For as my earthly part is a portion given to me from certain earth, and that which is watery from another element, and that which is hot and fiery from some peculiar source (for nothing comes out of that which is nothing, as nothing also returns to non-existence), so also the intellectual part comes from some source.
He who has seen present things has seen all, both everything which has taken place from all eternity and everything which will be for time without end; for all things are of one kin and of one form.
Frequently consider the connexion of all things in the universe and their relation to one another. For in a manner all things are implicated with one another, and all in this way are friendly to one another; for one thing comes in order after another, and this is by virtue of the active movement and mutual conspiration and the unity of the substance.
All things are implicated with one another, and the bond is holy; and there is hardly anything unconnected with any other thing. For things have been co-ordinated, and they combine to form the same universe (order). For there is one universe made up of all things, and one God who pervades all things, and one substance, and one law, one common reason in all intelligent animals, and one truth; if indeed there is also one perfection for all animals which are of the same stock and participate in the same reason.
If thou didst ever see a hand cut off, or a foot, or a head, lying anywhere apart from the rest of the body, such does a man make himself, as far as he can, who is not content with what happens, and separates himself from others, or does anything unsocial. Suppose that thou hast detached thyself from the natural unity- for thou wast made by nature a part, but now thou hast cut thyself off- yet here there is this beautiful provision, that it is in thy power again to unite thyself. God has allowed this to no other part, after it has been separated and cut asunder, to come together again. But consider the kindness by which he has distinguished man, for he has put it in his power not to be separated at all from the universal; and when he has been separated, he has allowed him to return and to be united and to resume his place as a part.
A branch cut off from the adjacent branch must of necessity be cut off from the whole tree also. So too a man when he is separated from another man has fallen off from the whole social community. Now as to a branch, another cuts it off, but a man by his own act separates himself from his neighbour when he hates him and turns away from him, and he does not know that he has at the same time cut himself off from the whole social system.