People removed by as much as 3 degrees of separation still had an effect on a person's happiness.

VOA: special.2009.01.21

And the smaller the physical distance between friends, the larger the effect they had on each other's happiness.

VOA: special.2009.01.21

The smile on others' lips my happiness."

VOA: special.2009.11.15

Gillian wrote a report of how he spent the thousand dollars: "Paid by Robert Gillian, one thousand dollars on account of the eternal happiness, owed by Heaven to the best and dearest woman on earth."

VOA: special.2011.08.13

Keith says that happiness can be heard on Defying Gravity.

VOA: standard.2009.04.19