 To Mīmānsā scholars, the nature of non-empirical knowledge and human means to it are such that one can never demonstrate certainty, one can only falsify knowledge claims, in some cases.Buddhist philosophy's main concern is soteriological, defined as freedom from dukkha (unease).Because ignorance to the true nature of things is considered one of the roots of suffering, Buddhist thinkers concerned themselves with philosophical questions related to epistemology and the use of reason.