- Contingent features(what Korsgaard warns against basing identity on)
- Characteristics about you that could have been different or might change—like your appearance, talents, or social status (as opposed to unchangeable essentials).
- Finite essences(what Leibniz says contains necessary limitations)
- The fundamental nature or core identity of things that are limited or bounded (like humans or objects), as opposed to God who is infinite and unlimited.
- Intelligible structure(what contains the necessary limitations according to Leibniz)
- The pattern or logical framework that makes something understandable and able to be thought about rationally.
- Intrinsic(describing the kind of continuities that ground identity)
- Something that belongs to or is part of something by its very nature, rather than coming from outside or being relational.
- Leibniz
- Leibniz is a German philosopher and mathematician from the 1600s-1700s who developed calculus (a powerful math tool for measuring change and areas) independently around the same time as Isaac Newton. He's famous for creating much of the notation we still use in mathematics today and for arguing that everything in the universe follows logical principles. His ideas profoundly influenced modern science, mathematics, and philosophy, making him one of history's most important thinkers.
- Necessary limitations(the type of imperfection Leibniz believes is intrinsic to finite things)
- Restrictions or constraints that *must* be true about something because of what it fundamentally is—you can't remove them without changing the thing itself.
- Original imperfection(Leibniz's concept explaining why created things aren't perfect)
- The idea that finite (limited) things are inherently incomplete or imperfect—not because of mistakes, but because being limited is part of what makes them what they are.
- theodicy(Central concern of Plutarch's era)
- The philosophical problem of reconciling the existence of evil and unpunished wrongdoing with the existence and goodness of divine providence.