Thus, many observers have concluded that for world peace and security to become a reality, all nations must unite under a single government. Albert Einstein, for example, long advocated such an idea.
उदाहरणार्थ, अल्बर्ट आइन्स्टाईन यांनी फार पूर्वीपासून या कल्पनेचे समर्थन केले होते.