This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...s, the absence of any indulgence in conscious, willful evil. Just as a judge in a court of law may err, when the evidence is inconclusive, but may not evade the evidence available, nor accept br ibes, nor allow any personal feeling, emotion, desire or fear to obstruct his mind’s judgment of the facts of reality — so every rational person must maintain an equally strict and solemn in tegrity in the courtroom within his own mind, where the responsibility is more awesome than in a public tribunal, because he, the judge, is the only one to know when he has been impeached.
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