[TiredOfLife]

From Douglas Adams (of "Hitchhiker's Guide to the Galaxy" fame)

1. Anything that is in the world when you’re born is normal and ordinary and is just a natural part of the way the world works.

2. Anything that’s invented between when you’re fifteen and thirty-five is new and exciting and revolutionary and you can probably get a career in it.

3. Anything invented after you’re thirty-five is against the natural order of things.

[netdevphoenix]

Reminds me of a quote that says that science progresses one scientist's funeral at a time as push back against new ideas often comes from older scientists regardless of the empirical merits of the idea.