Can we tell how much better '"Mormonism'" is than other religions and isms of the present day? More or less truth may be found in them all, both in civilized and barbarous nations. How has it transpired that theological truth is thus so widely disseminated? It is because God was once known on the earth among his children of mankind, as we know one another. Adam was as conversant with his Father who placed him upon this earth as we are conversant with our earthly parents. The Father frequently came to visit his son Adam, and talked and walked with him; and the children of Adam were more or less acquainted with their Grandfather, and their children were more or less acquainted with their Great-Grandfather; and the things that pertain to God and to heaven were as familiar among mankind, in the first ages of their existence on the earth, as these mountains are to our mountain boys, as our gardens are to our wives and children, or as the road to the Western Ocean is to the experienced traveller. From this source mankind have received their religious traditions. ...
I am more afraid that this people have so much confidence in their leaders that they will not inquire for themselves of God whether they are led by Him. I am fearful they settle down in a state of blind self-security, trusting their eternal destiny in the hands of their leaders with a reckless confidence that in itself would thwart the purposes of God in their salvation, and weaken that influence they could give to their leaders, did they know for themselves, by the revelations of Jesus, that they are led in the right way. Let every man and woman know, by the whispering of the Spirit of God to themselves, whether their leaders are walking in the path the Lord dictates, or not. This has been my exhortation continually.
[Source: Journal of Discourses. Liverpool, England, 1853-86. 9:147-150; Deseret News. Also Deseret Evening News, Deseret News Weekly, Deseret News Semi- Weekly, and Deseret News Extra, Salt Lake City, in The Complete Discourses of Brigham Young, Ed. Richard S. Van Wagoner, Smith-Pettit Foundation, Salt Lake City (2009), http://bit.ly/BY-discourses]