Sanctify them in the truth; your word is truth. (John 17:17 ESV)
Despite what we're still hearing (and thinking), a strong and healthy grip on doctrine gives us strength and joy for life, and produces within us a Christ-like character. Properly handling the truth of the Bible enriches our lives. Our souls don't shrivel up under the influence of sound, consistent teaching; they thrive.
Theologian Geerhardus Vos (1862-1949) who fought many battles against liberalism in the early to mid 1900s wrote:
"To join the outcry against dogma and fact means to lower the ideal of what the Christian consciousness ought normally to be to the level of the spiritual depression of our own day and generation.
How much better that we should all strive to raise our drooping faith and to re-enrich our depleted experience up to the standard of those blessed periods in the life of the Church when the belief in Bible history and the religion of the heart went hand in hand and kept equal pace, when people were ready to lay down their lives for facts and doctrines, because facts and doctrine formed the daily spiritual nourishment of the souls.
May God by his Spirit maintain among us, and through our instrumentality revive around us, that truly evangelical type of piety which not merely tolerates facts and doctrines, but draws from them its strength and inspiration in life and service, its only comfort and hope in the hour of death."
—Geerhardus Vos, “Christian Faith and the Truthfulness of Bible History,” The Princeton Theological Review (1906): 289-305.
(The Geerhardus Vos quote was taken from http://thegospelcoalition.org/blogs/justintaylor/2013/02/05/the-truly-evangelical-type-of-piety/ .)