Artificial intelligence (AI) is the intelligence of machines and robots and the branch of computer science that
aims to create it. AI textbooks define the field as "the study and design of intelligent agents" where an intelligent
agent is a system that perceives its environment and takes actions that maximize its chances of success. John
McCarthy, who coined the term in 1955, defines it as "the science and engineering of making intelligent
machines."
AI research is highly technical and specialized, deeply divided into subfields that often fail to communicate with
each other. Some of the division is due to social and cultural factors: subfields have grown up around particular
institutions and the work of individual researchers. AI research is also divided by several technical issues. There are
subfields which are focused on the solution of specific problems, on one of several possible approaches, on the use
of widely differing tools and towards the accomplishment of particular applications. The central problems of AI
include such traits as reasoning, knowledge, planning, learning, communication, perception and the ability to move
and manipulate objects. General intelligence (or "strong AI") is still among the field's long term goals. Currently
popular approaches include statistical methods, computational intelligence and traditional symbolic AI. There are
an enormous number of tools used in AI, including versions of search and mathematical optimization, logic, methods
based on probability and economics, and many others.
The field was founded on the claim that a central property of humans, intelligence—the sapience of Homo sapiens—
can be so precisely described that it can be simulated by a machine. This raises philosophical issues about the nature
of the mind and the ethics of creating artificial beings, issues which have been addressed by myth, fiction and
philosophy since antiquity. Artificial intelligence has been the subject of optimism, but has also suffered setbacks
and, today, has become an essential part of the technology industry, providing the heavy lifting for many of the most
difficult problems in computer science.
Real stupidity beats artificial intelligence every time.
-- Terry Pratchett

The question of whether computers can think is like the question of whether submarines can
swim. ― Edsger W. Dijkstra
To be human is to be 'a' human, a specific person with a life history and idiosyncrasy and point
of view; artificial intelligence suggest that the line between intelligent machines and people blurs
most when a puree is made of that identity. ― Brian Christian
Maybe the only significant difference between a really smart simulation and a human
being was the noise they made when you punched them. ― Terry Pratchett
I think they are a better race than humans ever were. ― Angelo Tsanatelis
The AI does not hate you, nor does it love you, but you are made out of atoms which
it can use for something else. ― Eliezer Yudkowsky
Our ultimate objective is to make programs that learn from their experience as
effectively as humans do. We shall…say that a program has common sense if it
automatically deduces for itself a sufficient wide class of immediate consequences
of anything it is told and what it already knows. ― John McCarthy
Artificial intelligence is no match for natural stupidity. ― Anon.
I visualize a time when we will be to robots what dogs are to humans, and I'm rooting
for the machines. ― Claude Shannon
Artificial intelligence is that field of computer usage which attempts to construct
computational mechanisms for activities that are considered to require intelligence
when performed by humans. ― Derek Partridge

AI is about making machines more fathomable and more under the control of human beings,
not less. Conventional technology has indeed been making our environment more complex and
more incomprehensible, and if it continues as it is doing now the only conceivable outcome is
disaster. ― Donald Michie
Machines will be capable, within twenty years, of doing any work that a man can do.
― Herbert Simon
Artificial intelligence is the mimicking of human thought and cognitive processes
to solve complex problems. ― Richard Stottler
AI has never been a monolithic science; by the mid-1970s, the diverging interests of
its pioneers were giving birth to recognizable specialties. ― Daniel Crevier
Artificial Intelligence: the art of making computers that behave like the ones in
movies. ― Bill Bulko
Some people worry that artificial intelligence will make us feel inferior, but then,
anybody in his right mind should have an inferiority complex every time he looks at a
flower.― Alan Kay
Supercomputers will achieve one human brain capacity by 2010, and personal
computers will do so by about 2020. ― Ray Kurzweil
By 2100, our destiny is to become like the gods we once worshipped and feared. But
our tools will not be magic wands and potions but the science of computers,
nanotechnology, artificial intelligence, biotechnology, and most of all, the quantum
theory. ― Michio Kaku