Now I don’t see anything evil in a desire to make money. But money is only a means to some end. If a man wants it for a personal purpose — to invest … - Ayn Rand

The people of Algiers marched through the streets of the city, in desperate protest against the new threat of civil war, shouting: 'We want peace! We want a government!' How are they to go about getting it? Through the years of civil war, they had been united, not by any political philosophy, but only by a racial issue. They were fighting, not for any program, but only against French rule. When they won their independence, they fell apart - into rival tribes and armed 'willayas' fighting one another

"Rules?" said Roark. "Here are my rules: what can be done with one substance must never be done with another. No two materials are alike. No two sites on earth are alike. No two buildings have the same purpose. The purpose, the site, the material determine the shape. Nothing can be reasonable or beautiful unless it's made by one central idea, and the idea sets every detail. A building is alive, like a man. Its integrity is to follow its own truth, its one single theme, and to serve its own single purpose. A man doesn't borrow pieces of his body. A building doesn't borrow hunks of its soul. Its maker gives it the soul and every wall, window and stairway to express it."

Above all, do not join the wrong ideological groups or movements, in order to “do something.” By “ideological” (in this context), I mean groups or movements proclaiming some vaguely generalized, undefined (and, usually, contradictory) political goals. (E.g., the Conservative Party, that subordinates reason to faith, and substitutes theocracy for capitalism; or the “libertarian” hippies, who subordinate reason to whims, and substitute anarchism for capitalism.) To join such groups means to reverse the philosophical hierarchy and to sell out fundamental principles for the sake of some superficial political action which is bound to fail.