“Cannibals need love too.”

Cannibalism
The Note-Books of Samuel Butler (1912), Part II - Elementary Morality

Song What the World Needs Now is Love (1965)

"What the World Needs Now is Love" (1965); this song was actually written by Burt Bacharach and Hal David and offered to other singers who initially passed it up. It became DeShannon's first number one hit.
Misattributed

No source given, and searches reveal no sources.

At Apple&#x27;s 2013 Q1 earnings call http://arstechnica.com/apple/2013/01/tim-cook-on-the-imac-cannibalization-is-a-huge-opportunity-for-us/ (2013-01-23) <br class="br">iPad sales had been increasing at the expense of Mac sales.

Song lyrics, The Dreaming (1982)
Variant: We needed you
To love us too.
We wait for your move.

(Chapter 2)

Sādhanā : The Realisation of Life http://www.spiritualbee.com/spiritual-book-by-tagore/ (1916) <br class="br">Context: We never can have a true view of man unless we have a love for him. Civilisation must be judged and prized, not by the amount of power it has developed, but by how much it has evolved and given expression to, by its laws and institutions, the love of humanity. The first question and the last which it has to answer is, Whether and how far it recognises man more as a spirit than a machine? Whenever some ancient civilisation fell into decay and died, it was owing to causes which produced callousness of heart and led to the cheapening of man&#x27;s worth; when either the state or some powerful group of men began to look upon the people as a mere instrument of their power; when, by compelling weaker races to slavery and trying to keep them down by every means, man struck at the foundation of his greatness, his own love of freedom and fair-play. Civilisation can never sustain itself upon cannibalism of any form. For that by which alone man is true can only be nourished by love and justice.

Source: Moby-Dick or, The Whale