“Love makes life a little brighter”

Variant: For every dark night, there's a brighter day.

Source: Man in Black

Original: (it) L'esistenza è fatta di piccole cose. Spegnete la TV, accendete la musica... e fate l'amore con la vita.
Source: prevale.net

Source: Ruth Hall: A Domestic Tale of the Present Time

"Love Will Find A Way" (1968); written with Jimmy Holiday and Randy Myers

Source: True Love

From the closing credits of Under the Cherry Moon (1986), and the liner notes of Parade (1986)

ἐν ὀλιγίστοις κεῖται τὸ εὐδαιμόνως βιῶσαι
VII, 67
Source: Meditations (c. 121–180 AD), Book VII