This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...other men. It requires that one possess a defined hierarchy of rational values (values chosen and validated by a rational standard). Without such a hierarchy, neither rational conduct nor consid ered value judgments nor moral choices are possible.

Love and friendship are profoundly personal, selfish values: love is an expression and assertion of self-esteem, a response to
one’s own values in the person of another. One gains a profoundly personal, selfish joy from the mere existence of the person one loves. It is one’s own personal, selfish happiness that one ...
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