“But he had been in love once, that he knew. Once and only once, and a long time ago. And it had changed him forever. Perfect love did that to a person and this had been perfect.”
Source: The Notebook
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Nicholas Sparks 646
American writer and novelist 1965Related quotes

“A perfect poem is impossible. Once it had been written, the world would end.”
The Paris Review, "Writers at Work: 4th series," interview with Peter Buckman and William Fifield (1969).
General sources

Source: Margaret Sanger: An Autobiography (1938), Chapter 30, "Now Is the Time for Converse", p. 374.

“Once her love had been publicized, it would gain weight, become a burden.”
Source: The Unbearable Lightness of Being
Source: Ten Little Wizards (1988), Chapter 4 (p. 24)