This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...capitalism and socialism has been answered once and for all — for any honest person — by the present difference between West and East Berlin.

Instead of peace, socialism has in
troduced a new kind of gruesome lunacy into international relations — the “cold war,” which is a state of chronic war with undeclared periods of peace between wantonly sudden invasions — with Russia seizing one-third of the globe, with socialist tribes and nations at one another’s throats, with socialist India invading Goa, and communist China invading socialist India.
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