“To maintain the state of doubt and to carry on systematic and protracted inquiry—these are the essentials of thinking.”
— John DeweyHow We Think (1910), Chapter 1, What Is Thought?
Commentary
This concise formulation links doubt with sustained investigation. Dewey's point is not that a thoughtful person must doubt every claim indefinitely, but that an initial uncertainty should not be suppressed merely because a convenient answer is available. Inquiry requires enough patience to examine the problem and seek relevant evidence.
The phrase 'systematic and protracted inquiry' suggests a method rather than an unstructured accumulation of information. Questions need to be clarified, possible explanations considered, and evidence assessed in relation to the issue being investigated. The process may end in a well-supported conclusion, a revised question, or a recognition that the evidence remains insufficient.
The passage also offers a useful distinction between skepticism and cynicism. Cynicism can dismiss claims without examining them; Deweyan inquiry subjects claims to investigation. Doubt is valuable because it opens the way to better-grounded belief, not because it makes reliable knowledge impossible.
In practical research, this principle encourages careful source checking, transparent reasoning, and a readiness to revise an interpretation when new evidence appears. It is equally applicable to everyday decisions, where an initial impression can be tested against further observation before it is allowed to determine action.
Commentary
This concise formulation links doubt with sustained investigation. Dewey's point is not that a thoughtful person must doubt every claim indefinitely, but that an initial uncertainty should not be suppressed merely because a convenient answer is available. Inquiry requires enough patience to examine the problem and seek relevant evidence.
The phrase 'systematic and protracted inquiry' suggests a method rather than an unstructured accumulation of information. Questions need to be clarified, possible explanations considered, and evidence assessed in relation to the issue being investigated. The process may end in a well-supported conclusion, a revised question, or a recognition that the evidence remains insufficient.
The passage also offers a useful distinction between skepticism and cynicism. Cynicism can dismiss claims without examining them; Deweyan inquiry subjects claims to investigation. Doubt is valuable because it opens the way to better-grounded belief, not because it makes reliable knowledge impossible.
In practical research, this principle encourages careful source checking, transparent reasoning, and a readiness to revise an interpretation when new evidence appears. It is equally applicable to everyday decisions, where an initial impression can be tested against further observation before it is allowed to determine action.