Thales was not only a thinker, astronomer, philosopher and scientist in ancient Greece, but also a businessman who didn't concentrate on business. Some people think that what he has learned all day is useless and say that he is a poor businessman who can't do business. In order to prove himself, Thales observed the celestial phenomena at night and used the knowledge in his head to predict the bumper harvest of olives next year. So he sold his property and rented all the local olive oil presses at a very low price the next summer. In autumn, there is a bumper harvest of olives. Everyone needs to squeeze olive oil, and the machine for squeezing olive oil has been monopolized by Terez. He rented it to these people at a price several times higher than the oil press he rented at the beginning, and made a lot of money. In fact, Thales is not a money addict. He just wants to tell others that he has learned very useful knowledge. Money is valuable, but knowledge is priceless.
Thales never got married. When he was young, his mother asked him to find someone to marry. He said not yet. When a man reaches middle age, his mother urges him to get married quickly. He said that time has passed.