provocation incitements incentives stimuli impetuses motivations encouragement spurs instigations impulses goads stimulants inducements boosts incitation momentums stimulation yeast inspiration pressure cause promptings proddings stirring excitement reason challenges dares taunts baitings persuasion beseechings motives agitation pushes pushings exhortation pressurization coaxings whips fuel fodder ammunition fomentations arousings kindling impulsions urges catalysts pressings wills motion movement bait lures carrot reminders prompts prods nudges admonishments paraenesis insistence warnings fillips drives influence purpose enticement triggers stimulators ends kicks propellants determinants lift draws invitation pulls temptation attraction goals tonics consideration arousals charge stings bribes excitants grounds sources rationales flashes mainsprings propulsion causation force actuation desire speeds