Extrinsic aging is caused by external factors such as sun exposure and smoking.
The motivation for learning is extrinsic, provided by the reinforcement schedule, not intrinsic, deriving from the pupil.
Typically either intrinsic, extrinsic or both parameters are altered.
Accordingly, in 1655, he printed everything that had passed between them (under the title of A Defence of the True Liberty of Human Actions from Antecedent or Extrinsic Necessity), with loud complaint against the treatment he had received, and the promise added that, in default of others, he himself would stand forward to expose the deadly principles of Leviathan.
Some believe that the reformation doctrine of extrinsic justification has been compromised within Reformed circles by the downplaying of the objectivity of the sacraments.
