espousal

Preposition: of

• cause: And this espousal of the cause of the private landowners, the small farmers and small ranchers, is evident throughout his work.
• theory: Magonia has become well known among many ufologists for its espousal of the psychosocial theory of UFOs.
• value: This is also apparent in their espousal of green values and their attempt to infiltrate and exploit the ecological movement.
• level: The worst example of this is the British espousal of the level playing field.

Adjective modifier

• passionate: He compelled attention by his strenuous activity, his passionate espousal of causes, and his enthusiasm for a constructive measure.