The most difficult thing in life is to know yourself.
Thales of Miletus was a pre-Socratic Greek philosopher from Miletus in Ionia, Asia Minor, and one of the Seven Sages, the founding figures of ancient Greece. Since the eighteenth century, many historians have regarded him as the first philosopher in the Greek tradition, breaking with mythology to explain the world through natural philosophy.
He is also described as the first to have engaged in mathematics, science and deductive reasoning. His view that all of nature rests on a single ultimate substance, which he believed to be water, was widely influential among the philosophers of his time, and he thought the Earth floated on water. In mathematics he is the namesake of Thales's theorem, and he was said to have calculated the heights of the pyramids.
He is also described as the first to have engaged in mathematics, science and deductive reasoning. His view that all of nature rests on a single ultimate substance, which he believed to be water, was widely influential among the philosophers of his time, and he thought the Earth floated on water. In mathematics he is the namesake of Thales's theorem, and he was said to have calculated the heights of the pyramids.
Hope is the only good that is common to all men those who have nothing else possess hope still.
God is the most ancient of all things, for he had no birth.