“There can be no Satyagraha in an unjust cause. Satyagraha in a just cause is vain, if the men espousing it are not determined and capable of fighting and suffering to the end; and the slightest use of violence often defeats a just cause. Satyagraha excludes the use of violence in any shape or form, whether in thought, speech, or deed. Given a just cause, capacity for endless suffering and avoidance of violence, victory is a certainty.” 

— M. K. Gandhi (REFERENCE: Young India 27.4.1921.)

Satyagraha (pronounced: Saty-AHH-grAH-ha, emphasis on second and third A) literally means “grasping to Truth.” Gandhi coined this phrase to emphasize that his conception of nonviolence was much more active and much more positive a force than what people thought of as “passive resistance.”

When is Satyagraha necessary?

Audios

What is Satyagraha?
Metta Center for Nonviolence

What are the guidelines for Satyagraha?
Metta Cnetern for Nonviolence
Is Satyagraha "moving the heart"?
Metta Center for Nonviolence
How does one train for Satyagraha?
Metta Center for Nonviolence
How do I evaluate its effectiveness?
Metta Center for Nonviolence
Is Satyagraha just a set of tactics?
Metta Center for Nonviolence
What comes next?
Metta Center for Nonviolence