Buddhadāsa Bhikkhu was an influential Thai ascetic-philosopher of the 20th century. Known as an innovative reinterpreter of Buddhist doctrine and Thai folk beliefs, Buddhadasa fostered a reformation in conventional religious perceptions in Thailand and abroad.

Buddhadasa was broadly ecumenical, holding “all religions to be inwardly the same”, and encouraged Buddhists to transcend clinging to Buddhism as a “religion.”

~ From Wikipedia

Selected Works (in chronological order)

Buddha-Dhamma For (University) Students (1968) – Buddhadāsa Bhikkhu

Featured in the course, " An Introduction to Buddhist Philosophy"

Where is Suan Mokkh? (1983) – Buddhadāsa Bhikkhu

Heartwood of the Bodhi Tree: The Buddha’s Teaching on Voidness (1985) – Buddhadāsa Bhikkhu

To be female is to have the dukkha of a female. To be male is to have the dukkha of a male. […] If we deludedly think ‘I am happy’ then we must suffer accordingly.

A Single Bowl of Sauce: Teachings Beyond Good and Evil (2017) – Buddhadāsa Bhikkhu

Kamma in Buddhism (2017) – Buddhadāsa Bhikkhu