“”It is better to debate a question without settling it, than to settle a question without debating it.
A debate, in common parlance, means a discussion of a particular subject in which people express different opinions. A formal debate is a regulated discussion of a proposition between two matched sides, generally ending with a vote or other decision.
 Debate and democracy
Debate has been inextricably intertwined with the concept of the open society, as democratic societies depend upon the free and open exchange of ideas, providing a contrast to the totalitarian regimes where a limited set of ideas are imposed as absolute truths.
Totalitarian societies sometimes allow a certain amount of debate (see, for example, the concept of democratic centralism), but it is not free and open, and being on the wrong side of a debate could get you made persona non grata by the winners. Thus, to have an open society it is more important whether debate is unrestricted (i.e., whether there is freedom of speech) than whether it exists or not.
 Debate and creationism
Debates have been greatly abused by young Earth creationists, who use them to push their agenda in the following manner:
- Challenge "evolutionists" to a debate.
- Goad them by yelling, "Evolutionists won't debate us! They know they'll be trounced by the hammer of our irresistible logic!"
- Wait for a scientist to take them up on their challenge.
- When the scientist and creationist are in the debate venue, have the creationist Gish gallop over the scientist — or possibly start declaring things that are not even wrong.
- Declare the creationist the winner.
- Use the debate as further evidence of the claim in step 2.
This is pretty much why people such as Richard Dawkins refuse to debate creationists.