3 quotes:

• "As a human being, you have no choice about the fact that you need a philosophy. Your only choice is whether you define your philosophy by a conscious, rational, disciplined process of thought and scrupulously logical deliberation — or let your subconscious accumulate a junk heap of unwarranted conclusions, false generalizations, undefined contradictions, undigested slogans, unidentified wishes, doubts and fears, thrown together by chance, but integrated by your subconscious into a kind of mongrel philosophy and fused into a single, solid weight: self-doubt, like a ball and chain in the place where your mind’s wings should have grown." Philosophy: Who Needs It, 5

• "There are only two means by which men can deal with one another: guns or logic. Force or persuasion. Those who know that they cannot win by means of logic, have always resorted to guns."

• "Competition is a by-product of productive work, not its goal. A creative man is motivated by the desire to achieve, not by the desire to beat others."

For a fuller view of her thoughts I recommend this:
https://campus.aynrand.org/lexicon