"We have flown the air like birds and swum the sea like fishes, ....

[Skidmore]

(Who can complete this and attribute it properly? Who can internalize its meaning right now? Go for it...complete the quote.)

[gristy]

1. Martin Luther King, Jr.

We have flown the air like birds and swum the sea like fishes, but have yet to learn the simple act of walking the earth like brothers.

http://www.wow4u.com/helping/

[Skidmore]

3. Quote is correct.

Attribution is not. Martin Luther King Jr.

Seems appropriate for GDP though.

[gristy]

4. attribution corrected

Didn't see the name had wrapped around in my browser

[anigbrowl]

5. Don't be a pedant

When the name's used without the qualifier it's generally taken to mean MLK Jr.

[RichardRay]

2. "...but have yet to learn the simple act of walking like brothers."

Dr. King