Idempotent

Idempotent Operations: Operations that have no side-effects if executed multiple times. 
Example: An operation that retrieves values from a data resource and say, prints it 

Non-Idempotent Operations: Operations that would cause some harm if executed multiple times. (As they change some values or states) 
Example: An operation that withdraws from a bank account

http://stackoverflow.com/questions/1077412/what-is-an-idempotent-operation

Github video

http://blogs.atlassian.com/2014/01/simple-git-workflow-simple/

Buying a Car: 129 cars (dealership)

http://www.thisamericanlife.org/radio-archives/episode/513/129-cars

It's a Wonderful Life

Blue Whale - the biggest animal on the planet

Quote by Oscar WIlde

Each man kills the thing he loves. (Source: The Alchemist by Paulo Coelho)

90:10 rule

TED talk: Paul Piff: Does money make you mean?

Quote by Bob Dylan

“You better start swimming or sink like a stone, cause the times they are a-changing.” - Bob Dylan

Quotes by Leo Tolstoy

"The two most powerful warriors are patience and time" - Leo Tolstoy
"The sole meaning of life is to serve humanity" - Leo Tolstoy