It is precisely our plasticity, our long childhood, that prevents a slavish adherence to genetically preprogrammed behavior in human beings more than in any other species… Some substantial adjustment of the relative role of each component of the triune brain is well within our powers.

Carl Sagan
About This Quote

The fact that humans are more plastic in their behavior than any other species is a big reason they have been able to evolve and evolve with such success. It is also a reason why we can change in order to adapt to a changing environment. The fact that we can change indicates that we are a product of evolution. A product of evolution means that all of us share the same traits. We are all the same.

Source: Dragons Of Eden: Speculations On The Evolution Of Human Intelligence

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  1. Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.
  2. The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.
  3. The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a...
  4. A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.
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