The unphilosophical majority among men are the ones most helplessly dependent on their era's dominant ideas. In times of crises these men need the guidance of some kind of theory; but, being unfamiliar with the field of ideas, they do not know that alternatives to the popular theories are possible. They know only what they have always been taught.
Leonard Peikoff
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Fundamental ideas play the most essential role in forming a physical theory. Books on physics are full of complicated mathematical formulae. But thought and ideas, not formulae, are the beginning of every physical theory. The ideas must later take the mathematical form of a quantitative theory, to make possible the comparison with experiment.
Albert Einstein
Conservatives feel instinctively that it is new ideas more than anything else that cause change. But, from its point of view rightly, conservatism fears new ideas because it has no distinctive principles of its own to oppose them; and, by its distrust of theory and its lack of imagination concerning anything except that which experience has already proved, it deprives itself of the weapons needed in the struggle of ideas. Unlike liberalism, with its fundamental belief in the long-range power of ideas, conservatism is bound by the stock of ideas inherited at a given time. And since it does not really believe in the power of argument, its last resort is generally a claim to superior wisdom, based on some self-arrogated superior quality.
Friedrich Hayek
I have to say I found Ayn Rand’s philosophy laughable. It was "a white supremacist dreams of the master race," burnt in an early-20th century form. Her ideas didn’t really appeal to me, but they seemed to be the kind of ideas that people would espouse, people who might secretly believe themselves to be part of the elite, and not part of the excluded majority.
Ayn Rand
There are more ideas on earth than intellectuals imagine. And these ideas are more active, stronger, more resistant, more passionate than "politicians" think. We have to be there at the birth of ideas, the bursting outward of their force: not in books expressing them, but in events manifesting this force, in struggles carried on around ideas, for or against them. Ideas do not rule the world. But it is because the world has ideas (and because it constantly produces them) that it is not passively ruled by those who are its leaders or those who would like to teach it, once and for all, what it must think.
Michel Foucault
From any vocabulary of ideas we can build other ideas by formal combinations of signs. But not any set of ideas will be instructive. One must have the right ideas.
Ian Hacking
Peikoff, Leonard
Peiper, Joachim
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