Full Idea
Aristotle reminds us that nothing is to count as predicable that cannot be said-of many things.
Gist of Idea
Only what can be said of many things is a predicable
Source
report of Aristotle (Categories [c.331 BCE]) by Michael V. Wedin - Aristotle's Theory of Substance III.1
Book Reference
Wedin,Michael V.: 'Aristotle's Theory of Substance' [OUP 2000], p.71
A Reaction
Thus there wouldn't be any predicates if there were not universals. Could we have proper names for individual qualities (tropes), in the way that we have them for individual objects?