H
hammiesink
Guest
Thinkandmull,
What he is talking about is an infinite chain of hierarchical movers, stretching “down” in the present, not necessarily back into the past. The key is to understand the difference between an accidentally ordered series and an essentially ordered series.
In an accidental series, each member of the causal chain has its own power to generate an effect. Example: a man has a son, the son grows up and has his own son, who grows up and has his own son, etc. Each person in the chain has the causal power to generate a new offspring.
In an essential series, only one member of the chain has the causal power to generate an effect. The rest of the members of the chain can only pass along the effect, but cannot generate it. You might label them “primary cause” and “secondary cause.” Example: the motor in a clock has the power to turn gears and so is the primary cause, but the rest of the gears in the clock only have the power to pass that effect along; they cannot generate it originally.
When Thomas argues against an infinite regress, what he is talking about is an essentially ordered series, not an accidental one. He is saying that if everything is a secondary cause, then there is no primary cause, and if there is no primary cause, there is no effect for the secondary causes to pass along; but the secondary causes are passing along an effect, therefore not everything is a secondary cause.
I can answer this one.
- Thomas Aquinas says in the Summa Theologica that we can’t know from reason that the world isn’t eternal, and yet in his Contra Summa Gentiles he says that there can’t be infinite intermediate movers. How do we reconcile this.
What he is talking about is an infinite chain of hierarchical movers, stretching “down” in the present, not necessarily back into the past. The key is to understand the difference between an accidentally ordered series and an essentially ordered series.
In an accidental series, each member of the causal chain has its own power to generate an effect. Example: a man has a son, the son grows up and has his own son, who grows up and has his own son, etc. Each person in the chain has the causal power to generate a new offspring.
In an essential series, only one member of the chain has the causal power to generate an effect. The rest of the members of the chain can only pass along the effect, but cannot generate it. You might label them “primary cause” and “secondary cause.” Example: the motor in a clock has the power to turn gears and so is the primary cause, but the rest of the gears in the clock only have the power to pass that effect along; they cannot generate it originally.
When Thomas argues against an infinite regress, what he is talking about is an essentially ordered series, not an accidental one. He is saying that if everything is a secondary cause, then there is no primary cause, and if there is no primary cause, there is no effect for the secondary causes to pass along; but the secondary causes are passing along an effect, therefore not everything is a secondary cause.