Trinity

“Lex malla, lex nulla,” said Julian with a regretful wave of his hand. It was the Blackthorn family motto: A bad law is no law.
“I wonder what other family mottoes are,” Emma mused. “Do you know any?”
“The Lightwood family motto is ‘We mean well.’ ”
“Very funny.”
Julian looked over at her. “No, really, it actually is.”
“Seriously? So what’s the Herondale family motto? ‘Chiseled but angsty’?”
He shrugged. ‘If you don’t know what your last name is, it’s probably Herondale’?”
Emma burst out laughing. “What about Carstairs?” she asked, tapping Cortana. “ ‘We have a sword’? ‘Blunt instruments are for losers’?”
“Morgenstern,” offered Julian. “ ‘When in doubt, start a war’?”
― Cassandra Clare, Lord of Shadows