Speaking at a BYU devotional – May 18, 1960 President David O. McKay said,
Students, two forces are at work. There might be a confrontation such as the world has never known. Mankind will have to choose between one course or the other. It’s difficult if not quite impossible for one to say of anything with absolute certainty, ‘This is the best.’ Or, ‘This is the worst’. If one so express oneself another with greater intelligence and more experience may say with much more accuracy that something else is best, or some other thing is worst. It’s therefore the better part of wisdom not to dogmatize nor to speak with too much assurance about things with which there may be a divergence of opinion. And upon which one person’s judgment would be as weighty as another’s. It is somewhat presumptuous therefore to point out specifically the noblest calling in life. For as soon as it is named someone may prove conclusively that we have used a superlative degree inadvisedly. However, whatever it’s name, it is evident that man’s noblest work must be impregnated with the greatest of all forces. And that force is love. Furthermore this power must be directed not for selfish purposes, nor to achieve personal ends. Caused the downfall of that young girl, who might have joined the class described by Victor Hugo when he describes the state reached by Fantine, do you remember?”
My thoughts went to the things relating to conspiracy and whatnot and that this principle applies there. Not to say I shouldn’t stand with steadfastness for those things that are most important and I know are right, but must be careful not to speak with too much assurance about those things which are open to different opinion and are not completely verifiable. But those things that are verifiable beyond any reasonable doubt I can most vigorously defend and promote. Of course, some things are more important than others and that must be born in mind as well.