This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...implest shelter, he needs a process of thought. No percepts and no “instincts” will tell him how to light a fire, how to weave cloth, how to forge tools, how to make a wheel, how to make an airplane, how to perform an appendectomy, how to produce an electric light bulb or an electronic tube or a cyclotron or a box of matches. Yet his life depends on such knowledge — and only a vo litional act of his consciousness, a process of thought, can provide it.

But man’s responsibility goes still further: a process of thought is not automatic nor “instinctive” ...
read full book block explorer