This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
... favor of a lower value or of a nonvalue. If one gives up that which one does not value in order to obtain that which one does value — or if one gives up a lesser value in order to obtain a gr eater one — this is not a sacrifice, but a gain.

Remember further that all of a man’s values exist in a hierarchy; he values some things more than others; and, to the extent th
at he is rational, the hierarchical order of his values is rational: that is, he values things in proportion to their importance in serving his life and well-being. That which is inimical to his...
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