“Love is an attempt to penetrate another being, but it can only be realized if the surrender is mutual.”

Source: Manuscript Found in Accra (2012), What should survivors tell their children?

Source: The First Phone Call from Heaven

Source: A Practical Guide to Samadhi (1957), p. 143

Phantastes (1858)
Variant: It is by loving and not by being loved, that one can come nearest to the soul of another.
Context: I knew now, that it is by loving, and not by being loved, that one can come nearest the soul of another; yea, that, where two love, it is the loving of each other, and not the being loved by each other, that originates and perfects and assures their blessedness. I knew that love gives to him that loveth, power over any soul beloved, even if that soul know him not, bringing him inwardly close to that spirit; a power that cannot be but for good; for in proportion as selfishness intrudes, the love ceases, and the power which springs therefrom dies. Yet all love will, one day, meet with its return. All true love will, one day, behold its own image in the eyes of the beloved, and be humbly glad. This is possible in the realms of lofty Death.

"Kafka in the Present Day", originally published in [London] Sunday Times (1983)
A User's Guide to the Millennium (1996)
Context: Human beings today … are surrounded by huge institutions we can never penetrate: the City [London's Wall Street], the banking system, political and advertising conglomerates, vast entertainment enterprises. They've made themselves user friendly, but they define the tastes to which we conform. They're rather subtle, subservient tyrants, but no less sinister for that.

La fidelidad (lo que así se llama para referirse a la constancia y exclusividad con que un determinado sexo penetra o es penetrado por otro igualmente determinado, o se abstiene de ser penetrado o penetrar en otros) es producto de la costumbre principalmente, como lo es también la llamada—contrariamente— infidelidad (la inconstancia y alternación y el abarcamiento de más de un sexo).
Source: Todas las Almas [All Souls] (1989), p. 122

Source: The Hunger Games

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)