Original sentence: As the custodians and modern exponents of the 1200-year old teaching of inner wisdom and harmonious conscious development often referred to as "The Tradition", the Shah family claims to have intentionally impacted Western thought by collecting, preserving, and presenting this valuable and timeless material
Edited sentence: As the custodians and modern exponents of the 1200-year old teaching of inner wisdom and harmonious conscious development often referred to as "The Tradition", the Shah family has intentionally impacted Western thought by collecting, preserving, and presenting this valuable and timeless material