The first is when there is an equal linguistic propriety in several interpretations; the second when one is improper but customary; the third when the ambiguity arises in the combination of elements that are in themselves unambiguous, as in "knowing letters." "Knowing" and "letters" are perhaps separately unambiguous, but in combination may imply either that the letters are known, or that they themselves have knowledge. Such are the modes in which propositions and terms may be ambiguous.'
- Eta zer ikusten dute?