“I've done no injustice, and I repent of nothing. I'm too happy, and yet I'm not happy enough. My soul's bliss kills my body, but does not satisfy itself.”
Heathcliff (Ch. XXXIV).
Wuthering Heights (1847)
Help us to complete the source, original and additional information
Emily Brontë 151
English novelist and poet 1818–1848Related quotes

Lithium.
Song lyrics, Nevermind (1991)
Variant: I'm so happy
'Cause today I found my friends
They're in my head.
I'm so ugly, that's okay
'Cause so are you,
Broke our mirrors.
Source: Nirvana

My Heart Will Always Be The B-Side To My Tongue (2004), Honda Civic Tour (2007)

“Some people might say my life is in a rut, but I'm quite happy with what I've got.”
Going Underground (1980)

http://www.usatoday.com/sports/boxing/2005-06-02-tyson-saraceno_x.htm?csp=34
http://observer.guardian.co.uk/osm/story/0,,1654125,00.html
On himself

“Sometimes I'm happy
sometimes I'm blue
my disposition
depends on you.”
"Sometimes I'm Happy".

“I'm so happy. Cause today I found my friends.
They're in my head.”
Source: Artwork.

Source: Karel Appel – the complete sculptures,' (1990), p. 85 'Quotes', K. Appel (1989)