What is the investigation into the truth in this matter? The division into that which is material and that which is the cause of form, the formal.
I am composed of the formal and the material; and neither of them will perish into non-existence, as neither of them came into existence out of non-existence. Every part of me then will be reduced by change into some part of the universe, and that again will change into another part of the universe, and so on for ever. And by consequence of such a change I too exist, and those who begot me, and so on for ever in the other direction. For nothing hinders us from saying so, even if the universe is administered according to definite periods of revolution.
The reason which governs knows what its own disposition is, and what it does, and on what material it works.
Everything material soon disappears in the substance of the whole; and everything formal (causal) is very soon taken back into the universal reason; and the memory of everything is very soon overwhelmed in time.
In everything which happens keep before thy eyes those to whom the same things happened, and how they were vexed, and treated them as strange things, and found fault with them: and now where are they? Nowhere. Why then dost thou too choose to act in the same way? And why dost thou not leave these agitations which are foreign to nature, to those who cause them and those who are moved by them? And why art thou not altogether intent upon the right way of making use of the things which happen to thee? For then thou wilt use them well, and they will be a material for thee to work on. Only attend to thyself, and resolve to be a good man in every act which thou doest: and remember...
This thing, what is it in itself, in its own constitution? What is its substance and material? And what its causal nature (or form)? And what is it doing in the world? And how long does it subsist?
As the nature of the universal has given to every rational being all the other powers that it has, so we have received from it this power also. For as the universal nature converts and fixes in its predestined place everything which stands in the way and opposes it, and makes such things a part of itself, so also the rational animal is able to make every hindrance its own material, and to use it for such purposes as it may have designed.
Examine into the quality of the form of an object, and detach it altogether from its material part, and then contemplate it; then determine the time, the longest which a thing of this peculiar form is naturally made to endure.
What is that which as to this material (our life) can be done or said in the way most conformable to reason. For whatever this may be, it is in thy power to do it or to say it, and do not make excuses that thou art hindered. Thou wilt not cease to lament till thy mind is in such a condition that, what luxury is to those who enjoy pleasure, such shall be to thee, in the matter which is subjected and presented to thee, the doing of the things which are conformable to man's constitution; for a man ought to consider as an enjoyment everything which it is in his power to do according to his own nature. And it is in his power everywhere.
God sees the minds (ruling principles) of all men bared of the material vesture and rind and impurities. For with his intellectual part alone he touches the intelligence only which has flowed and been derived from himself into these bodies. And if thou also usest thyself to do this, thou wilt rid thyself of thy much trouble. For he who regards not the poor flesh which envelops him, surely will not trouble himself by looking after raiment and dwelling and fame and such like externals and show.
In everything always observe what the thing is which produces for thee an appearance, and resolve it by dividing it into the formal, the material, the purpose, and the time within which it must end.