It’s the eyes in Dostoevsky’s Crime and Punishment:

“And do you know what?” Raskolnikov cried out, raising himself on his pillow and looking point blank at him with piercing, glittering eyes. “Do you know what?”

“But to torment me and laugh in my face, that I will not allow!” His lips trembled all at once, his eyes lit up in a fury, and his hitherto restrained voice rang out. “I will not allow it, sir!”

“You’re lying!” Rage shone in Dunya’s eyes. “You’re lying, slanderer!” She raised the revolver and, deathly pale, her white lower lip trembling, her black eyes flashing like fire, looked at him, having made up her mind.

It was as if fire flashed in his extinguished eyes, as if he were pleased to think there was still pride in him. The silence lasted for two minutes.

Excerpted from Fyodor Dostoevsky’s Crime and Punishment. (Pevear/Volokhonsky translation)