In The Prepared Mind of a Leader (2005,) Bill Welter and Jean Egmon write about the difficulty on truly seeing the world as it is:

Paradigms are wonderful shortcuts as we think about the world, but they are deadly if they are not attuned with reality. All of us are bombarded with increasing waves of data and sensory inputs, and whether we realize it or not, we have become increasingly resistant. It’s not so much a case of having to pay attention to the news of the world as it is a case of knowing when to change our filters so that the important stuff comes in.