This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...thers).

When a “desire,” regardless of its nature or cause, is taken as an ethical primary, and the gratification of any and all desires is taken as an ethical goal (such as �
�the greatest happiness of the greatest number”) — men have no choice but to hate, fear and fight one another, because their desires and their interests will necessarily clash. If “desire� �� is the ethical standard, then one man’s desire to produce and another man’s desire to rob him have equal ethical validity; one man’s desire to be free and another man’s desire to ensl...
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