Up to this period of time the various political events at home had disturbed but slightly the tranquillity of this rich province of Spain. The Cubans, although sensible of the progress of public intelligence and wealth under the protection of a few enlightened governors and through the influence of some distinguished and patriotic individuals, still felt that these advances were slow, partial, and limited. The most intelligent realized that there was no regular system; that the public interests were sure to suffer, confided to officials entrusted with unlimited power. They frequently saw themselves betrayed by a cupidity which impelled the authorities to enrich themselves in every possible way at the expense of general suffering. Added to these sources of discontent was the powerful influence exerted by the spectacle of the rapidly increasing greatness of the United States, where a portion of the Cuban youths were wont to receive their education. No matter in what political faith these youths had left home, they were sure to return republicans. There also were the examples of Mexico and Spanish South America, which had recently conquered with their blood their emancipation from monarchy. Liberal ideas were naturally diffused by Cubans who had traveled either in Europe or North America, there imbibing the spirit of modern civilization. But with a fatuity and obstinacy which has always characterized her, the mother country resolved to ignore all causes of discontent, and their significant influence as manifested by the people of the island. In place of yielding to the popular current and introducing a liberal and mild system of government, she drew the reins yet tighter, curtailing many former privileges. Thus it was that blind persistence in the fatal principle of despotic domination relaxed the natural bonds uniting Cuba and the mother country, and infused gall into the hearts of the governed. Obedience still continued, but it was the dangerous obedience of terror, not the secure and instinctive spirit of loyalty.