“Do not consider it proof just because it is written in books, for a liar who will deceive with his tongue will not hesitate to do the same with his pen.”

“If a person studies too much and exhausts his reflective powers, he will be confused, and will not be able to apprehend even that which had been within the power of his apprehension. For the powers of the body are all alike in this respect.”

“The physician should not treat the disease but the patient who is suffering from it”

“All the evils that men cause to each other because of certain desires, or opinions or religious principles, are rooted in ignorance. [All hatred would come to an end] when the earth was flooded with the knowledge of God.”

“Your purpose...should always be to know...the whole that was intended to be known.”

“Anticipate charity by preventing poverty.”

“No disease that can be treated by diet should be treated with any other means.”