According to memory

1. Omni 1: 18
   18 But it came to pass that Mosiah caused that they should be taught in his language. And it came to pass that after they were taught in the language of Mosiah, Zarahemla gave a genealogy of his fathers, according to his memory; and they are written, but not in these plates.
2. Ether 5: 1
   1 And now I, Moroni, have written the words which were commanded me, according to my memory; and I have told you the things which I have sealed up; therefore touch them not in order that ye may translate; for that thing is forbidden you, except by and by it shall be wisdom in God.