it until you are finished, then put it back in its place. This applies even when reviewing: a person may be reviewing, for example, five books, each of them on a shelf. Once you have reviewed one, do not say, “I will keep it beside me,” for you no longer need it at that moment. Put it back in its place first, because you will inevitably have to put it away eventually; and so that the area around you remains free of piled-up books and stays orderly.

Likewise, when money is entrusted to you, do not leave it in front of you, saying, “When I get up, I will put it in the safe.” Put it away immediately, because a person is human and may forget. Similarly, if a question occurs to you while you are a student of knowledge, and you say, “This is easy; I will review it later,” then it is better that you review it first, while you still need it and are not already reviewing a particular issue. But if you are already reviewing a particular issue, do not become distracted by something else and thereby lose track of it.

A beneficial point may also come across your way which you may not find in any other book, or it may not be located where you think it is. A person may say, “I will retain it in my mind and will not forget it,” yet fail to write it down—or at least mark its page in the margin of the book. Then afterward he forgets it, and it is lost to him, even though it was a precious benefit. But he forgets, because a person is human.

“If he claims that he paid the price to the pledgee, but the latter denies it, and there is no evidence, and the payment was not made in the pledgor’s presence, then he is liable, just as an agent is liable.”

His statement, “If he claims that he paid the price,” means: the trustee.

His statement, “to the pledgee, but the latter denies it, and there is no evidence, and the payment was not made in the pledgor’s presence, then he is liable,” means: the trustee is liable.

The scenario is as follows: the pledgor authorizes the trustee to sell the pledged property and pay his creditor. He sells it, then comes to the creditor in his shop and says, “O so-and-so, here is…”