Full Idea
Some things are-potentially while others are-actually.
Gist of Idea
Existence is either potential or actual
Source
Aristotle (Coming-to-be and Passing-away (Gen/Corr) [c.335 BCE], 327b24)
Book Reference
Aristotle: 'The Basic Works of Aristotle', ed/tr. McKeon,Richard [Modern Library Classics 2001], p.504
A Reaction
I've read a lot of Aristotle, but am still not quite clear what this distinction means. I like the distinction between a thing's actual being and its 'modal profile', but the latter may extend well beyond what Aristotle means by potential being.