Gretchen Rubin

Gretchen Rubin is an American author known for her books on happiness and human behavior, including 'The Happiness Project'.

"Enthusiasm is a form of social courage."

Gretchen Rubin

"This is one of the many paradoxes of happiness: we seek to control our lives, but the unfamiliar and the unexpected are important sources of happiness."

Gretchen Rubin