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My question is clear: what is philosophy and why it is exist and why people still care about philosophy when we have science?

marked as duplicate by Dennis, Not_Here, Canyon, Keelan Jan 30 '18 at 16:28

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    Because science can not give answers to ultimate questions that people have. – Andrei Geanta Jan 27 '18 at 7:29
  • Science can only deal with natural phenomena. But many people believe in a bigger and broader reality that exist outside the natural realm. People have the tendacy to believe and imagine things that aren't always true, that do not really exist. Perhaps this was an advantage for the first members of our species. – Andrei Geanta Jan 27 '18 at 7:37
  • Science is logical modeling of phenomena, and possibly the best thing philosophy has produced yet. – reaanb Jan 27 '18 at 18:12
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Historical note: Only a few centuries ago no distinction was being made between philosophy and science. Physics at the time of Newton, for example, was referred to as "natural philosophy".

Science is a particular method of acquiring knowledge: observe nature -> form a hypothesis -> make a prediction -> conduct multiple experiments -> confirm or reject. Scientific knowledge is one of the most reliable kinds we have, second only to mathematical knowledge.

Philosophy, on the other hand, encompasses any "knowledge" that could be obtained through questioning, speculation, discussion, reasoning, and not necessarily including observation.

In that sense, science is a very narrow part of philosophy. It is not concerned with (among other things):

  • the unobservable, e.g. claims of the existence of a god who never interferes with the universe

  • the unobjective, e.g. ethical question, which are very much dependent on the cultural background of who's asking them

  • the untestable, e.g. string theory is sometimes criticised as "unscientific" for beautifully explaining nature but not making any testable predictions about it

  • the unrepeatable, e.g. claims of miracles - one-time violations of the known laws of physics

Philosophy (apart from science) exists because of the human desire to pursue knowledge, even at the cost of its quality.

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