Sangha, A Practice Community
The community of people that we spend time with directly affects our ability to evolve and grow. The Buddha was known to have said that keeping good company was perhaps the most central element of one's personal practice. This is not to say that we should alienate or distance ourselves from those who challenge us, but rather that we should skillfully recognize those relationships that truly feed us in some deep and profoundly healthy way.
"It takes two to speak the truth - one to speak and another to hear."
--Henry David Thoreau