Possible Clues:

• Deeply ingrained tendency to be supportive and kind
• Instinctive tendency to support the environment
• Revolutionary denounces art: it's almost instinct
• It's one's characteristic habit to back the Constitution?
• Criminal case turned on deeply ingrained habit
• Swimming or riding a bike, for most people
• Support life in the wild -- it's instinctive
• Mistakenly denounces art that's now done without thinking
• Something one can do without thinking
• Almost instinctive behaviour