This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
... as heat or frost, drought or flood — and there are certain actions which it is able to perform to combat adverse conditions, such as the ability of some plants to grow and crawl from under a rock to reach the sunlight. But whatever the conditions, there is no alternative in a plant’s function: it acts automatically to further its life, it cannot act for its own destruction.

The range of actions required for the survival of the higher organisms is wider: it is proportionate to the range of their consciousness. The lower of the conscious species possess only ...
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