Undoubtedly being the strongest perpetuator of the Cuban revolution, and being the mastermind who crafted the fall of President Batista through a political coup , speaks from a prison a little before the actual coup, he doesn't mince words addressing Batista
"I warn you, I am just beginning! If there is in your hearts a vestige of love for your country, love for humanity, love for justice, listen carefully... I know that the regime will try to suppress the truth by all possible means; I know that there will be a conspiracy to bury me in oblivion. But my voice will not be stifled – it will rise from my breast even when I feel most alone, and my heart will give it all the fire that callous cowards deny it... Condemn me. It does not matter. History will absolve me."
Fidel has been internationally been a headline grabber, whether be his dictaorial figure or his intense distaste for capitalism as shown in this speech he makes to the Cubans in 1961.
"The revolution has no time for elections. There is no more democratic government in Latin America than the revolutionary government. ... If Mr. Kennedy does not like Socialism, we do not like imperialism. We do not like capitalism."
Castro has also been internationally the most targetted figure for assasination. The CIA in particularly has made several schemes to terminate the most popular figure of Latin America. Most of these have been documented in the book "638 ways to kill Castro" . Castro in him inimitable style once quips,
"If surviving assassination attempts were an Olympic event, I would win the gold medal."
Cuba ,however now needs a leader, (after Castro's stepping down) a leader who can cleverly steer Cuba through a planned economic reformation process. By all indications this leader will be his younger brother Raul Castro. Being the Latin American country with the strongest Communist ideology, this will be a real challenge for Raul.
But for as of now, a sigh of releif for the US and the CIA, and a goodbye to Fidel Castro.