This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...people, he never counts on anything but his own ability to persuade them and their voluntary agreement.

Needless to say, a rational man never distorts or corrupts his own standards
and judgment in order to appeal to the irrationality, stupidity or dishonesty of others. He knows that such a course is suicidal. He knows that one’s only practical chance to achieve any degr ee of success or anything humanly desirable lies in dealing with those who are rational, whether there are many of them or few. If, in any given set of circumstances, any victory is possible at ...
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