along with reciting D&C 4 (and other various scripture references) every morning in my mission prep class, this quote was always read by someone in the class.
"to every man, there comes that special moment when he is figuratively tapped on the shoulder, and offered the chance to do a special thing unique to him and fitted to his talent. what a tragedy if that moment finds him unprepared, or unqualified to do the work"
we also did this one quite often too
The Standard of Truth has been erected; no unhallowed hand can stop the work from progressing; persecutions may rage, mobs may combine, armies may assemble, calumny may defame, but the truth of God will go forth boldly, nobly, and independent, till it has penetrated every continent, visited every clime, swept every country, and sounded in every ear, till the purposes of God shall be accomplished, and the Great Jehovah shall say the work is done.