There is nothing to fear from truth....Being truthful is essential to being an independent thinker and obtaining greater understanding of what is right.
Remember that experience creates internalization. Doing things repeatedly leads to internalization, which produces a quality of understanding that is generally vastly superior to intellectualized learning.
I believe that understanding what is good is obtained by looking at the way the world works and figuring out how to operate in harmony with it to help it evolve.