Early Greek philosophers like Thales, Anaximander, and Democritus attempted to understand the natural world through reason rather than myths or religion. Thales believed all things were made of water, while Anaximander proposed an indefinite "boundless" element. Democritus developed an atomic theory, believing the world was made of invisible particles. Socrates disagreed with the Sophists' teachings and used questioning to help students determine right from wrong. Plato documented Socrates' teachings and examined justice in works like The Republic. Aristotle studied many topics and emphasized balance and moderation. Greek philosophy emphasized rational thought and questioning, laying the foundation for many fields of modern study.

1. JERLYN MAE S.
QUILIOPE

2. One of the most unique and wonderful
of Greek inventions was philosophy
Philosophy was the special way
Greeks attempted to make sense out
of the world, in a non-religious way
This means that rather than using
myths and stories to understand the
world, they would use their intelligence
and reasoning skills

3. “Philo-” means love, and
“-sophia” means wisdom, so
the word “philosophy” really
means “the love of wisdom.”
Basically, philosophy is
thinking about the world and
making sense out of it.

4. Early Greeks began asking the
question, “What exists?”
They questioned the world
around them and tried to make
sense out of what they saw.
Other, different philosophies were
developed, each of which tried to
make sense out of the world.

5. Eventually, their ideas built
upon each other until very
complicated philosophies were
developed
These early thinkers were so
influential that their ideas are
still around today, and people
still study them in colleges and
universities

6. The earliest of Greek
philosophers tried to
answer the question of
what exists by coming up
with a number of different
ideas

7. The Four Elements
Thales, who lived around 600
BC (nearly 2,600 years ago)
determined that everything
was made up of water, which
he thought was the single
primal element

8. • Anaximander,come up
with his own idea that
everything was made
up of an element he
called the
“boundless,” which
was divided up into
hot and cold, and wet
and dry.

9. It was these early ideas that
helped later philosophers to
classify the entire world
according to the four
elements: Earth, Air, Fire,
and Water

10. Mathematics
Pythagoras, around 530
BC, saw the key to all of
existence in mathematics,
and thought that the
entire world could be
explained with numbers.
Developed an advanced
system of geometry that
we still use today (people
still study the
Pythagorean Theorem in
geometry).

11. Atoms
Around 450 BC, there were two
philosophers, Leucippus and
Democritus, both of whom thought that
the world was made up of little particles
that were so small we couldn’t even see
them. They called these particles atoms,
and thought that they made up everything
in the universe.
Eventually, modern science would prove
that these atomic theories were right, even
though they were developed thousands of
years ago

12. The Sophists
Around 450 BC, philosophers known as Sophists
thought that “man is the measure” of everything.
In other words, they thought that the only things
that matter are human beings and the way we
see the world.
Taught their students that they should use their
reason, or intelligence, in order to succeed in life.
Sophists also believed that there is an important
difference between things that are man-made
versus things that are naturally made, and said
that natural products were better than man-made
ones

13. Socrates
Socrates, who lived from 469-399 BC, was one of the
most influential philosophers of all time
He disagreed with the sophists because they charged
their students money, but didn’t teach them how to be
ethical
Being ethical means acting in a morally responsible
manner, like doing the right thing, no matter what.
Socrates was one of the first philosophers to ask the
question “What is right and wrong?”
His teaching technique, later called the Socratic
Method, involved asking his students questions and
correcting them, so that they would come up with the
right answers

14. Socrates
Socrates’ Trial and Death
Welcomed any students into his lectures, and
so he ended up teaching some students that
were enemies of the state
This led some of his enemies in the Greek
government to accuse him of being disloyal to
the Greek democracy
The jury found him guilty and sentenced him to
the death penalty. At the age of 70, Socrates
accepted his punishment, drank a cup of
poison, and died.

15. PLATO
Socrates didn’t actually write down any of
his philosophies or philosophical teachings
Most of what we know about him is through
the writings of Plato, who lived from 428-
347 BC
Plato was one of Socrates’ most famous
pupils, who continued Socrates’ work by
writing hundreds of profound and complex
dialogues, which illustrated his philosophical
viewpoints

16. PLATO
The Republic
Most influential book that Plato wrote,
and is still the most widely read
philosophical book of all time
In The Republic, Plato examined the
question “What is justice?” and wrote
hundreds of pages about what the right
type of government should be

17. Aristotle
Most famous of Plato’s students
was Aristotle, who lived from 384-
322 BC
Instead of focusing on justice, like
Plato, Aristotle wrote about all
types of learning, such as logic,
metaphysics, astronomy, physics,
politics, and poetry

18. Aristotle
Most influential ideas if Aristotle’s
was that of the Golden Mean,
which was the idea of a middle
ground between good and bad,
and the belief in moderation, or
that people should try to maintain a
balance between two extremes

19. Greek philosophers all started a new type of
thinking. Rather than believing in myths and
stories, they began searching for the truth of
the world by using their rational thinking.
The ideas of Socrates, Plato, Aristotle, and
hundreds of other Greek philosophers, have
all remained very important in the
development of other new philosophical
ideas, as well as science, astronomy,
physics, medicine, and mathematics

20. THANK
YOU…