Write the Things Which Ye Have Seen and Heard

"Write the things which ye have seen and heard, save it be those which are forbidden. Write the works of this people, which shall be, even as hath been written, of that which hath been. For behold, out of the books which have been written, and which shall be written , shall this people be judged, for by them shall their works be known unto men. And behold, all things are written by the Father; therefore out of the books which shall be written shall the world be judged."
3 Nephi 27:23-26

It Is Our Responsibility To Write Our Own Personal History

"Our responsibility to keep a journal and to write our own personal histories and those of our ancestors, particularly those who belong to the first four generations of our pedigree, has not changed…We have encouraged members of our family organization to use these histories as a basis for family home evenings, held in their immediate families, to teach their children appreciation, love, and respect for their ancestors."
President Ezra Taft Benson, “Worthy of All Acceptation,” Ensign, Nov 1978, 30