More from Robert A. Heinlein
More about happiness
C. S. Lewis1898–1963Till We Have Faces: A Myth Retold (1956), Pt. 1, VII (Psyche)Think of all the beauty that’s still left in and around you, and be happy.
People/Robert A. Heinlein/Quote

Love is the condition in which the happiness of another person is essential to your own.
“Jubal Harshaw” in the first edition (1961)
Quote and source from Wikiquote, CC BY-SA 4.0
C. S. Lewis1898–1963Till We Have Faces: A Myth Retold (1956), Pt. 1, VII (Psyche)Think of all the beauty that’s still left in and around you, and be happy.