Agile in 1 sentence

Here is a question on LinkedIn where people define Agile in one sentence:

What's the Elevator Pitch for Agile?

Let's say you got into an elevator with a senior executive and you had 30 seconds to sell Agile to them, what would you say?

Carolyn Sanders writes:"Agile delivery is about two things: you usually don't know what you want until you see something, so deliver something real as early as you can; and if you're going to fail, fail fast.

Agile in general is about being fundamentally honest with each other, about money, about technical delivery and quality, about requirements andtime - that's why it's so scary for some people."

Mark Hawkins writes:"Methodology that empowers a project team to collaboratively take ownership of their deliverables to ensure successful completion of the project."