The primary political and philosophical issue of the next century will be the definition of who we are.

— Ray Kurzweil The Age of Spiritual Machines: When Computers Exceed Human Intelligence (1999)

More quotes by Ray Kurzweil

The Singularity Is Near: When Humans Transcend Biology (2005)

The Singularity Is Near: When Humans Transcend Biology (2005)

The Singularity Is Near: When Humans Transcend Biology (2005)

The Singularity Is Near: When Humans Transcend Biology (2005)

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