“Cassandra smiled up at him. "I've changed my mind about uncomfortable shoes. Why limp when I could dance?"
But he didn't smile back, only gave her a brooding glance and shook his head slightly.
"What?" she whispered.
His reply was halting and gruff. "Perfection is impossible. Most mathematical truths can't be proved. The vast majority of mathematical relations can't be known. But you... standing here in your bare feet in that dress... you're perfect.”