This is nothing new, but it is a great quote that I recently had the opportunity to re-read.
It seems that 1 Peter’s exhortation to “be ready always to give an answer to every man that asketh you a reason of the hope that is in you” charters and legitimates the use of reasoned argument in support of the gospel of Jesus Christ. Frankly, the idea that active Latter-day Saints might (or even should) feel no obligation to use what they know in order to defend the church against its critics, or to help struggling Saints, strikes me as exceedingly strange. Our responsibility as members of the Church of Jesus Christ of Latter-day Saints to love and serve the Lord with all our heart, might, mind, and strength implies such an obligation, and our temple covenants absolutely entail that we sustain and defend the kingdom of God.
In a sense, the scholar, thinker, teacher, or writer who places his or her skills on the altar as an offering to God is no different from the bricklayer, knitter, carpenter, counselor, administrator, dentist, accountant, youth leader, farmer, physician, linguist, genealogist, or nurse who donates time and labor and specific abilities in the service of God and the Saints and humanity in general.
http://publications.mi.byu.edu/fullscreen/?pub=1467&index=1#_ednref11
Lehi's Library 