The penultimate episode in our series on Marcus Aurelius finds Coach Blake exploring Aurelius's advice to always "practice kindness." The evidence is overwhelming: Kindness is good for us and improves our lives. And this is true in both our personal and professional lives. Leaders, in particular, must lead from a place of kindness and compassion. This doesn't mean, Coach Blake explains, that we should let others walk all over us, but rather that we should concentrate on cultivating relationships with a basis in compassion--relationships that foster an atmosphere of trust, mutual respect, and sincerity. In a space like laboratory sales, this deceptively simple rule can be the difference between building long-term relationships and finding yourself stopped short at the door. It's a seemingly simple observation that can, in fact, take you a long way: practice treating yourself and others with kindness.