Full Idea
Not only do we measure change by time, but time by change also, because they are defined by one another.
Gist of Idea
We measure change by time, and time by change, as they are interdefined
Source
Aristotle (Physics [c.337 BCE], 220b14)
Book Reference
Aristotle: 'Physics Books III and IV', ed/tr. Hussey,Edward [OUP 1983], p.46
A Reaction
He defends the idea that time is the 'number' of change, but this idea should sound a warning bell. He rejects the idea that time IS change. It is seems instrumentalist to make the existence of time depend on its measurement.
Related Idea
Idea 22959 Time is not change, but the number we associate with change [Aristotle]