I know you circulate my soul and in that I believe with tenacity.

The private showed his valor and kind tenaciousness by pulling me to safety while under fire.

bullheadedness, determination, doggedness, hardheadedness, mulishness, obstinance, obstinateness, pertinaciousness, pertinacity, perversity, pigheadedness, purpose, reluctance, tenaciousness, tenacity, willfulness

The noun determination is related to the verb "to determine." The past participle "determined" can be used as an adjective. Both determined and determination can have the connotation of tenaciousness or steadfastness (e.g. determined to succeed).

Their aren't weakness or stages now, because in the late 60s' Rotarian people which don't live anymore were in the civil war of economic at those times however the tenaciousness won.

THANK YOU SO MUCH!