Hesiod was a Greek poet, who has three works attributed to him (the ones that survived) by ancient commentators. These works are: Works and Days, Theogony and Shield of Heracles. Ancient authors credited him and Homer with establishing Greek religious customs. Even modern scholars refer to him as a major source on Greek mythology, farming techniques, early economic thought (he is sometimes identified as the first economist), archaic Greek astronomy and ancient time-keeping.
Hesiod had a way of thought that you would call “religious”. He believed in Zeus and in many other “gods”, however, he always referred to Zeus as an unclear “god” who could change his will at any moment, and is different at different times. To him Zeus was supreme, but somehow Demeter was another important “god” along with many others. He believed in five types of humans: gold, silver, bronze, demi-gods, and iron; in which he claimed we were the iron race. The race that has the biggest burden, and harder work, but also said we lived in a good age.
His view of the mankind´s past and future was based on the five races of men. He said that the past is: gold, silver, bronze, demi-gods, and iron; and that in the future our race will be destroyed by Zeus. In other words, mankind has no purpose, it is unable to achieve anything important, and therefore has to be eliminated.