FTP name this set of core beliefs, the foundation of Buddhism.
Tanha is the root of dukkha, which can only be alleviated by nirodha, through  marga. At the foot of the bodhi tree by Neranjana River, Buddha experienced these  as realities and attained enlightenment. During his first discourse after his  enlightenment, Buddha emphasized these as "actual, unerring, not otherwise."  Suffering is attachment and craving, and only the way leading to craving's cessation  can end suffering. FTP name this set of core beliefs, the foundation of Buddhism.
Tanha is the root of dukkha, which can only be alleviated by nirodha, through  marga.
Four Noble Truths