Rebbe Nachman teaches us that we need not be slaves to impulse and conditioning. We can respond differently. We can exercise discipline. This is true of thoughts, speech and deeds.
Our Rebbe likens this self-control to a rider on a horse that has gone astray. All he has to do is grab hold of the reins to return it to the path (Likutei Moharan II: 50).
As long as we keep life simple, we can maintain control over many facets of our lives.
Adapted from Crossing the Narrow Bridge, by Chaim Kramer