A Greek Philospher born in 354 BCE who takes after Plato but improves all the premises resulting with Thales to Zeno to Democritus to Socraties essentially all philosphers in between them. He is essentialy the answer to everything, his Metaphysics, science, souls, forms, cosmi, functions, elements. He basis everything off of knowledge, emperical observation, perceptual evidence, feelings, and he sets up the 4 methods to determine whether things actually exist, or have the potential to exist. He is one of the greatest philosphers that has ever lived. Another great philospher to look at would be Anaxagoras and Zeno.
He was 62 years old when he died.
Aristolte and Ptolemy sorry if i did not spell it right
Unlike most earlier approaches, it did not rely on authorities like Aristolte or Ptolemy or even the Bible. It depended instead upon observation and experimentation.Read more: How_did_the_scientific_method_differ_from_earlier_approaches
Carolus Linnaeus developed the present-day classification system for animals.