Spinoza's Ethics: Postulates

These postulates set up a kind of corporeal physics which is all-important if the object of the mind is the body. Most of the postulates are self-evident. However, V is different and appears to set up a structure for memory functions of encoding an experience.  

I. Corpus humanum componitur ex plurimis (diversæ naturæ) individuis quorum unumquodque valde compositum est.

Translated as,

The human body is composed of more individuals (of a diverse nature) of which each and every one is richly composed of. 

II. Individuorum ex quibus corpus humanum componitur quædam fluida, quædam mollia et quædam denique dura sunt.

Translated as,

Of the individuals of which the human body is composed, certain ones are fluid, certain ones are soft and finally certain ones are hard.

III. Individua corpus humanum componentia et consequenter ipsum humanum corpus a corporibus externis plurimis modis afficitur.

Translated as,

The human body is individual components and consequently the human body itself is affected by external bodies in more ways.

IV. Corpus humanum indiget ut conservetur plurimis aliis corporibus a quibus continuo quasi regeneratur.

Translated as,

The human body needs so that it must conserve from more other bodies by which it is as if continuously regenerated.

V. Cum corporis humani pars fluida a corpore externo determinatur ut in aliam mollem sæpe impingat, ejus planum mutat et veluti quædam corporis externi impellentis vestigia eidem imprimit.

Translated as,

Since the fluid part of the human body is determined by an external body so that it touches often on another soft [part] whose surface changes and as such leaves a certain vestige of the force of the external body on the same.

VI. Corpus humanum potest corpora externa plurimis modis movere plurimisque modis disponere.

Translated as,

The human body is able to move outside bodies by more ways and to displace them in more ways.