“Then she understood that what she needed was the motion to a purpose, no matter how small or in what form, the sense of an activity going step by step to some chosen end across a span of time. The work of cooking a meal was like a closed circle, completed and gone, leading nowhere. But the work of building a path was a living sum, so that no day was left to die behind her, but each day contained all those that preceded it, each day acquired its immortality on every succeeding tomorrow. A circle, she thought, is the movement proper to physical nature, they say that there's nothing but circular motion in the inanimate universe around us, but the straight line is the badge of man, the straight line of a geometrical abstraction that makes roads, rails and bridges, the straight line that cuts the curving aimlessness of nature by a purposeful motion from a start to an end. The cooking of meals, she thought, is like the feeding of coal to an engine for the sake of a great run, but what would be the imbecile torture of coaling an engine that had no run to make? It is not proper for man's life to be a circle, she thought, or a string of circles dropping off like zeros behind him--man's life must be a straight line of motion from goal to farther goal, each leading to the next and to a single growing sum, like a journey down the track of a railroad, from station to station to--oh, stop it!”

“There was still one response, the greatest, that she had missed. She thought: To find a feeling that would hold, as their sum, as their final expression, the purpose of all the things she loved on earth... To find a consciousness like her own, who would be the meaning of her world, as she would be of his... No, not Francisco d'Anconia, not Hank Rearden, not any man she had ever met or admired... A man who existed only in her knowledge of her capacity for an emotion she had never felt, but would have given her life to experience.”

“An open car drove by, fleeing into the country. The car was overfilled with people bound for a picnic. There was a jumble of bright sweaters, and scarfs fluttering in the wind; a jumble of voices shrieking without purpose over the roar of the motor, and overstressed hiccoughs of laughter; a girl sat sidewise, her legs flung over the side of the car; she wore a man's straw hat slipping down to her nose and she yanked savagely at the strings of a ukelele, ejecting raucous sounds, yelling 'Hey!' These people were enjoying a day of their existence; they were shrieking to the sky their release from the work and the burdens of the days behind them; they had worked and carried the burdens in order to reach a goal -- and this was the goal.”

“When a man in a forest thinks he is going forward in a straight line, in reality he is going in a circle, I did my best to go in a circle, hoping to go in a straight line.”

“Because the beauty of the human body is that it hasn't a single muscle which doesn't serve its purpose; that there's not a line wasted; that every detail of it fits one idea, the idea of a man and the life of a man.”

“to cheat your way into a job bigger than your mind can handle is to become a fear-corroded ape on borrowed motions and borrowed time, and to settle down into a job that requires less than your mind’s full capacity is to cut your motor and sentence yourself to another kind of motion: decay - that your work is the process of achieving your values, and to lose your ambition for values is to lose your ambition to live - that your body is a machine, but your mind is its driver, and you must drive as far as your mind will take you, with achievement as the goal of your road - that the man who has no purpose is a machine that coasts downhill at the mercy of any boulder to crash in the first chance ditch, that the man who stifles his mind is a stalled machine slowly going to rust, that the man who lets a leader prescribe his course is a wreck being towed to the scrap heap, and the man who makes another man his goal is a hitchhiker no driver should ever pick up - that your work is the purpose of your life, and you must speed past any killer who assumes the right to stop you, that any value you might find outside your work, any other loyalty or love, can be only travelers you choose to share your journey and must be travelers going on their own power in the same direction.”

“Productiveness is your acceptance of morality, your recognition of the fact that you choose to live--that productive work is the process by which man's consciousness controls his existence, a constant process of acquiring knowledge and shaping matter to fit one's purpose, of translating an idea into physical form, of remaking the earth in the image of one's values--that all work is creative work if done by a thinking mind, and no work is creative if done by a blank who repeats in uncritical stupor a routine he has learned from others--that your work is yours to choose, and the choice is as wide as your mind, that nothing more is possible to you and nothing less is human--that to cheat your way into a job bigger than your mind can handle is to become a fear-corroded ape on borrowed motions and borrowed time, and to settle down into a job that requires less than your mind's full capacity is to cut your motor and sentence yourself to another kind of motion: decay--that your work is the process of achieving your values, and to lose your ambition for values is to lose your ambition to live--that your body is a machine, but your mind is its driver, and you must drive as far as your mind will take you, with achievement as the goal of your road--that the man who has no purpose is a machine that coasts downhill at the mercy of any boulder to crash in the first chance ditch, that the man who stifles his mind is a stalled machine slowly going to rust, that the man who lets a leader prescribe his course is a wreck being towed to the scrap heap, and the man who makes another man his goal is a hitchhiker no driver should ever pick up--that your work is the purpose of your life, and you must speed past any killer who assumes the right to stop you, that any value you might find outside your work, any other loyalty or love, can be only travelers you choose to share your journey and must be travelers going on their own power in the same direction.”