One Emotion For Which They Had No Equivalent

Dagny Taggart and the railroad:

She never tried to explain why she liked the railroad. Whatever it was that others felt, she knew that this was one emotion for which they had no equivalent and no response. She felt the same emotion in school, in classes of mathematics, the only lessons she liked. She felt the excitement of solving problems, the insolent delight of taking up a challenge and disposing of it without effort, the eagerness to meet another, harder test. She felt, at the same time, a growing respect for the adversary, for a science that was so clean, so strict, so luminously rational. Studying mathematics, she felt, quite simply and at once: "How great that men have done this" and "How wonderful that I'm so good at it." It was the joy of admiration and of one's own ability, growing together. Her feeling for the railroad was the same: worship of the skill that had gone to make it, of the ingenuity of someone's clean, reasoning mind, worship with a secret smile that said she would know how to make it better some day. She hung around the tracks and the round-houses like a humble student, but the humility had a touch of future pride, a pride to be earned.

Ayn Rand, Atlas Shrugged, p. 54