Change
When an object changes, it always changes in some particular way. A baby grows up, and so changes in respect of size and maturity; a snake sheds its skin, and so changes in respect of its skin. "Change" may therefore be defined as follows:
- An object, O, changes with respect to property, P, if and only if O has P at one time, and at a later time, O does not have P.
That seems to be, in one way, what it means for a thing to change: it has a property at one time, and later it does not have that property. If a banana becomes brown, it can then be said: at one time, the banana is yellow; several days later, the banana is not yellow, but is instead brown. This appears fairly straightforward at this point, and there are no apparent problems as yet.
Another way for an object to change is to change its parts.
- An object, O, changes with respect to its part, P, if and only if O has the part P at one time, and at a later time, O does not have P.
Some philosophers believe that an object can't persist through a change of parts. They defend mereological essentialism.
Read more about this topic: Identity And Change
Famous quotes containing the word change:
“A life-worshipper’s philosophy is comprehensive.... He is at one moment a positivist and at another a mystic: now haunted by the thought of death ... and now a Dionysian child of nature; now a pessimist and now, with a change of lover or liver or even the weather, an exuberant believer that God’s in his heaven and all’s right with the world.”
—Aldous Huxley (1894–1963)
“There was no need for a feminist philosophy. My mother never stopped to think that she couldn’t do something.... You didn’t have to change the rules. Just be a strong and skilled individual, work hard, do your homework, and you can do it.”
—Katherine Berman Mariano (b. 1957)
“We used to think that revolutions are the cause of change. Actually it is the other way around: change prepares the ground for revolution.”
—Eric Hoffer (1902–1983)