 Peirce developed the idea that inquiry depends on real doubt, not mere verbal or hyperbolic doubt, and said that, in order to understand a conception in a fruitful way, "Consider the practical effects of the objects of your conception.Then, your conception of those effects is the whole of your conception of the object", which he later called the pragmatic maxim.It equates any conception of an object to the general extent of the conceivable implications for informed practice of that object's effects.