亚里士多德在他的《政治学》中提到古希腊哲学家泰勒斯的一个有趣的故事:当时一些无知的人们指责泰勒斯的穷困,因为泰勒斯以智者自居,同时在不断地宣传他的哲学,所以,穷困两个字就成为哲学无用的最佳理由。泰勒斯是精通天象的,所以还是在冬天的时候,他就预料到来年的橄榄要有一场大丰收。于是,他以他所有的一点钱作为租用丘斯和米利都的全部橄榄油器的押金,由于当时没有人跟他争价,他的租价是很低的。到了收获的时节,突然间需要许多榨油器, Aristotle mentions an interesting story of Thalassus, the ancient Greek philosopher, in his Political Science: At that time, some ignorant people accused Thales of being poor because Thales, who is a wise man, is constantly advocating His philosophy, therefore, the poor word has become the best reason for philosophy useless. Thales is good at astronomy, so in the winter, he expected a good harvest for the coming year’s olive. So, with all his little money, he took a deposit for renting all the olive oil devices in Qus and Miletus, and since no one was competing with him at that time, his rent was very low. To the harvest season, suddenly need many oil press,