I discovered this list of quotes by Winston Churchill. Churchill had a way with words, so I picked out a few quotes that seem to say something interesting about Agile development.
On feedback:
However beautiful the strategy, you should occasionally look at the results.
The farther backward you can look, the farther forward you can see.
I always avoid prophesying beforehand, because it is a much better policy to prophesy after the event has already taken place.
On planning:
It is a mistake to look too far ahead. Only one link of the chain of destiny can be handled at a time.
On retrospectives:
Personally I’m always ready to learn, although I do not always like being taught.
Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.
On documentation:
The length of this document defends it well against the risk of its being read.
On refactoring:
Do not let spacious plans for a new world divert your energies from saving what is left of the old.
On courage:
Success is not final, failure is not fatal: it is the courage to continue that counts.
You have enemies? Good. That means you’ve stood up for something, sometime in your life.