“Friendship often ends in love; but love in friendship—never.”
Charles Caleb Colton (1777–1832) British priest and writer
Vol. II; LXXXIII
Lacon
http://books.google.com/books?id=d8kCAAAAQAAJ&q=%22Because+friendship+is+intercommunication+of+love+therefore+where+love+is+not+mutual+there+can+be+no+friendship%22&pg=PA145#v=onepage
Car l'amitié est un amour mutuel, & s'il n'est mutuel, ce n'est pas amitié.
http://books.google.com/books?id=orIOAAAAQAAJ&q=%22car+l'amiti%C3%A9+est+un+amour+mutuel+%26+s'il+n'est+mutuel+ce+n'est+pas+amiti%C3%A9%22&pg=PA242#v=onepage
Pt. 3, ch. 17
Introduction to the Devout Life (1609)
“Friendship often ends in love; but love in friendship—never.”
Charles Caleb Colton (1777–1832) British priest and writer
Vol. II; LXXXIII
Lacon
“Friendship often ends in love, but love in friendship - never.”
Albert Camus (1913–1960) French author and journalist
“A friendship that like love is warm;
A love like friendship, steady.”
Thomas Moore (1779–1852) Irish poet, singer and songwriter
How shall I woo?
Bartlett's Familiar Quotations, 10th ed. (1919)
“Friendship may, and often does, grow into love, but love never subsides into friendship.”
George Gordon Byron (1788–1824) English poet and a leading figure in the Romantic movement
Quoted by Marguerite Gardiner, Countess of Blessington in Conversations of Lord Byron with the Countess of Blessington http://books.google.com/books?id=w648AAAAYAAJ&q="Friendship+may+and+often+does+grow+into+love+but+love+never+subsides+into+friendship"&pg=PA179#v=onepage (1834).
Michel De Montaigne (1533–1592) (1533-1592) French-Occitan author, humanistic philosopher, statesman
Elie Wiesel (1928–2016) writer, professor, political activist, Nobel Laureate, and Holocaust survivor
William Penn (1644–1718) English real estate entrepreneur, philosopher, early Quaker and founder of the Province of Pennsylvania
107
Fruits of Solitude (1682), Part I
John O'Donohue (1956–2008) Irish writer, priest and philosopher
Source: Anam Cara: A Book of Celtic Wisdom