Some Answered Questions

proved the immobility of the earth and the movement of the sun; later by logical arguments he proved that the sun was the stationary center, and that the earth was moving. Afterward the Ptolemaic theory was spread abroad, and the idea of Plato was entirely forgotten, until at last a new observer again called it to life. Thus all the mathematicians disagreed, although they relied upon arguments of reason. In the same way, by logical arguments, they would prove a problem at a certain time, then afterward by arguments of the same nature they would deny it. So one of the philosophers would firmly uphold a theory for a time with strong arguments and proofs to support it, which afterward he would retract and contradict by arguments of reason. Therefore, it is evident that the method of reason is not perfect, for the differences of the ancient philosophers, the want of stability and the variations of their opinions, prove this. For if it were perfect, all ought to be united in their ideas and agreed in their opinions.

The third method of understanding is by tradition—that is, through the text of the Holy Scriptures—for people say, “In the Old and New Testaments, God spoke thus.” This method equally is not perfect, because the traditions are understood by the reason. As the reason itself is liable to err, how can it be said that in interpreting the meaning of the traditions it will not err, for it is possible for it to make mistakes, and certainty cannot be attained. This is the method of the religious leaders; whatever they understand and comprehend from the text of the books is that which their reason understands from the text, and not necessarily the real truth; for the reason is like a balance, and the meanings contained in the text of the Holy Books are like the thing which is weighed. If the balance is untrue, how can the weight be ascertained?