In entering upon this course of instruction, each of you should, so far as possible, lay aside, for the time being, all previous theories and beliefs. By so doing you will be saved the trouble of trying, all the way through the course, to put "new wine into old wineskins." (Lk. 5:37)
If there is anything, as we proceed, which you do not understand or agree with, just let it lie passively in your mind until you have listened to the entire book, for many statements that would at first arouse antagonism and discussion will be clear and easily accepted a little farther on. After the course is completed, if you wish to return to your old beliefs and ways of living, you are at perfect liberty to do so. But, for the time being, be willing to become as a little child; for, said the master, in spiritual things, "Except ye...become as little children, ye shall in no wise enter into the kingdom of heaven." (Mt. 18:3)
If at times there seems to be repetition, please remember that these are lessons, not lectures.
"Finally...be strong in the Lord, and in the strength of his might." (Eph. 6:10)
"Finally, brethren, whatsoever things are true, whatsoever things are honorable, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report; if there be any virtue, and if there be any praise, think on these things." (Phil. 4:8)