This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...s if, by destroying the confident, the strong and the healthy, he could convert im- potence into efficacy.
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A rational, self-confident man is motivated by a love of values and by a
desire to achieve them. A neurotic is motivated by fear and by a desire to escape it. This difference in motivation is reflected, not only in the things each type of man will seek for pleasure,
but in the nature of the pleasure they will experience.
The emotional quality of the pleasure experienced by the four men described above, for instance, is not the same. The qualit...