Answer: love of country.
Explanation:
Garibaldi's quote apprised us on how nationalism is very close and crucial to other characteristic: love of country.
The idea of nationalism denote nothing but the love of country. Therefore nationalist primary focus lies in the love of his/her country and its citizens. They also protect and defend wholeheartedly -- their culture, heritage, traditions, relative etc. Garibaldi has clearly and correctly expressed his idea. he said: “let him who loves his country in his hear and not from his lips only, follow me.”