This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
.... An animal’s life consists of a series of separate cycles, repeated over and over again, such as the cycle of breeding its young, or of storing food for the winter; an animal’s consciousnes s cannot integrate its entire lifespan; it can carry just so far, then the animal has to begin the cycle all over again, with no connection to the past. Man ’s life is a continuous whole: for good or evil, every day, year and decade of his life holds the sum of all the days behind him. He can alter his choices, he is free to change the direction of his course, he is even free, in man...
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