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:
“The change of Philomel, by the barbarous king
So rudely forced; yet there the nightingale
Filled all the desert with inviolable voice
And still she cried, and still the world pursues,
“Jug Jug” to dirty ears.”
—T.S. (Thomas Stearns)
“You can’t change what happened between you and your ex-spouse, but you can change your attitude about it. Forgiveness doesn’t mean that what your ex did was right or that you condone what he or she did; it simply means that you no longer want to hold a grudge. Forgiveness is not a gift for the other person; it is a purely selfish act that allows you to put the past behind you.”
—Stephanie Marston (20th century)
“The change of Philomel, by the barbarous king
So rudely forced: yet there the nightingale
Filled all the desert with inviolable voice
And still she cried, and still the world pursues,
“Jug Jug” to dirty ears.”
—T.S. (Thomas Stearns)