Agile Manifesto
https://agilemanifesto.org/principles.html
References
Is the Agile Manifesto still a thing?
Kent Beck
James Grenning
Robert C. Martin
Mike Beedle
Jim Highsmith
Steve Mellor
Arie van Bennekum
Andrew Hunt
Ken Schwaber
Alistair Cockburn
Ron Jeffries
Jeff Sutherland
Ward Cunningham
Jon Kern
Dave Thomas
Martin Fowler
Brian Marick