Since patience or tolerance comes from an ability to remain firm and steadfast and not be overwhelmed by the adverse situations or conditions that one faces, one should not see tolerance or patience as a sign of weakness, or giving in, but rather as a sign of strength, coming from a deep ability to remain firm. Responding to a trying situation with patience and tolerance rather than reacting with anger and hatred involves active restraint, which comes from a strong, self-disciplined mind.
— Dalai Lama
from The Art of Happiness