Famous Sextus Empiricus Quote
...although both the Academics and the Pyrrhonian Skeptics say that they believe some things, yet here too the difference between the two philosophies is quite plain. For the word believe has different meanings; it means not to resist but simply to follow without any strong impulse or inclination, as the boy is said to believe his tutor; but sometimes it means to assent to a thing of deliberate choice and with a kind of sympathy due to strong desire, as when the incontinent man believes him who approves of an extravagant mode of life. Since, therefore, Carneades and Cleitomachus declare that a strong inclination accompanies their credence
By Sextus Empiricus