Aquinas pp 29-53 | Cite as

Form and Existence

  • Peter Geach
Part of the Modern Studies in Philosophy book series (MOSTPH)


In this paper I shall discuss what Aquinas meant by his term esse, or actus essendi, ‘act of existing’. Another synonym that he uses—quo aliquid est, ‘that by which a thing is (or: exists)’—suggests a convenient division of the subject: we can first discuss Aquinas’ philosophical use of quo, ‘that by which’, and then consider which sense of est, which sort of existential proposition, may be relevant to Aquinas’ doctrine of esse. But we shall see that, having got thus far, we cannot arrive at the meaning of the whole phrase, quo aliquid est, or the reasons for the way Aquinas uses it, simply by combining our separate considerations about quo and est.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Anthony Kenny 1969

Authors and Affiliations

  • Peter Geach

There are no affiliations available

Personalised recommendations