This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...w is the most crucial need of a peaceful society; without such protection, no civilization could be developed or maintained.

Man cannot survive, as animals do, by acting on the ran
ge of the immediate moment. Man has to project his goals and achieve them across a span of time; he has to calculate his actions and plan his life long-range. The better a man’s mind and the g reater his knowledge, the longer the range of his planning. The higher or more complex a civilization, the longer the range of activity it requires — and, therefore, the longer the range of co...
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