Complex sentence: Peirce emphasized that a conception is general, such that its meaning is not a definite set of actual effects themselves but instead involves conceiving of an object's effects to a general extent of their conceivable implications for informed practice.
Split into simpler sentences: Peirce emphasized that a conception is general, such that its meaning is not a definite set of actual effects themselves. Instead the conception of an object equates to a conception of that object's effects to a general extent of those effects' conceivable implications for informed practice.