“Earth loves the rain, the proud sky loves to give it. The whole world loves to create futurity. I say then to the world, "I share your love." Is this not the source of the phrase, "This loves to happen"?”
The last phrase is quoted in J. D. Salinger's Franny and Zooey as "It loved to happen".
Meditations (c. 121–180 AD), Book X, 21
Original: (el) ῾Ἐρᾷ μὲν ὄμβρου γαῖα, ἐρᾷ δὲ ὁ σεμνὸς αἰθήρ,᾿ ἐρᾷ δὲ ὁ κόσμος ποιῆσαι ὃ ἂν μέλλῃ γίνεσθαι. λέγω οὖν τῷ κόσμῳ ὅτι σοὶ συνερῶ. μήτι δὲ οὕτω κἀκεῖνο λέγεται, ὅτι: φιλεῖ τοῦτο γίνεσθαι;
Help us to complete the source, original and additional information
Marcus Aurelius 400
Emperor of Ancient Rome 121–180Related quotes

Source: Letters to Vera
From Daniel Ladinsky, The Gift: Poems by Hafiz https://books.google.com/books?id=_cdWZkYE_ZQC (1999), p. 34.

From Daniel Ladinsky, The Gift: Poems by Hafiz https://books.google.com/books?id=_cdWZkYE_ZQC (1999), p. 34. This is not a translation or interpretation of any poem by Hafez; http://www.payvand.com/news/09/apr/1266.html it is an original poem by Ladinsky inspired by the spirit of Hafez in a dream.
Misattributed

As quoted in "Sci-fi legend "Ray Bradbury on God, 'monsters and angels'" by John Blake, CNN : Living (2 August 2010) http://articles.cnn.com/2010-08-02/living/Bradbury_1_ray-bradbury-dandelion-wine-sam-weller?_s=PM:LIVING, p. 1

Source: Pan: From Lieutenant Thomas Glahn's Papers