This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...ove one’s case — to oneself and to any rational inquirer.
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The policy of always pronouncing moral judgment does not mean that one must regard oneself as a missionary charged wit
h the responsibility of “saving everyone’s soul” — nor that one must give unsolicited moral appraisals to all those one meets. It means: (a) that one must know clearly, in full, verbally
identified form, one’s own moral evaluation of every person, issue and event with which one deals, and act accordingly; (b) that one must make one’s moral evaluation known to others, when i...