Twin primes: pairs of prime numbers that are close to each other, almost neighbors, but between them there is always an even number that prevents them from truly touching. If you go on counting, you discover that these pairs gradually become rarer, lost in that silent, measured space made only of ciphers. You develop a distressing presentiment that the pairs encountered up until that point were accidental, that solitude is the true destiny. Then, just when you’re about to surrender, you come across another pair of twins, clutching each other tightly.

The love of those we don't love in return settles on the surface and from there quickly evaporates.

...finally her hands, so light, holding his head still and catching all his thoughts and imprisoning them there, in the space that no longer existed between them.

With a little effort, she could get up by herself

His scars were hidden and safe in her hand.

Feeling special is the worst kind of cage a person can build for himself.

Separating them were two layers of brick, a few inches of plaster, and nine years of silence.