Tirukkural 476: Know Your Limitations

There will be an end to the life of him who, having climbed out to the end of a branch, ventures to go further.

Image of Satguru Sivaya Subramuniyaswami
I can tell you from experience that zero tolerance for inharmonious conditions is a workable law and sadhana that can and should be adopted by all spiritual groups and individuals.
—Gurudeva