
Zeno of Citium studied under the shelter of his teacher, Crates of Thebes. Mnaseas, a merchant by profession was the father of Citium. Even at the age of 42, Zeno himself was a merchant like his father. Legend has it that, on one fine merchant journey, Zeno’s ship was completely in ruins and due to that he landed up in Athens. He approached philosophers in Athens and gradually he started liking philosophy.

Thales is a Greek philosopher and is known as being one among the Seven Wise Men. He is basically renowned for his theory about 