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:
“Lord Angelo is precise,
Stands at a guard with envy, scarce confesses
That his blood flows, or that his appetite
Is more to bread than stone. Hence shall we see
If power change purpose, what our seemers be.”
—William Shakespeare (1564–1616)
“The word infant derives from Latin words meaning “not yet speaking.” It emphasizes what the child cannot do and reflects the baby’s total dependence on adults. The word toddler, however, demonstrates our change in perspective, for it focuses on the child’s increased mobility and burgeoning independence.”
—Lawrence Kutner (20th century)
“My love is fair, my love is gay,
As fresh as bin the flowers in May
And of my love my roundelay,
My merry, merry, merry roundelay,
Concludes with Cupid’s curse,—
‘They that do change old love for new
Pray gods they change for worse!’”
—George Peele (1559–1596)