Fidel Castro held an intimate meeting with the Cuban Five, who are symbols of the country's tenacious resistance against terrorism, a few weeks after they returned home after serving years in US prisons, as a result of the policy implemented by the US Government to impose its criteria on Cuba.
 
At the end of the visit, which lasted more than five hours, following hugs and before saying good bye, Ramón Labañino (one of two Cuban antiterrorist fighters sentenced to life imprisonment and released after efforts between then Presidents Raúl Castro and Barack Obama), returned to the place from where the leader of the Revolution was watching them as they leave and asked him.
 
'Commander, excuse me, but I cannot leave without making you this question: In which task do you think the Five can be more useful?'
 
He looked at him for some seconds and answered:
 
'Be scientists'.
 
For the nearly-90-year-old leader, who had devoted himself to the transformation of his country into a new model of human coexistence, being a man or a woman of science in any field of knowledge was the paradigm of excellence that he had aspired for several decades.
 
Even under forced rest due to his physical ailments, the Commander-in-Chief was still committed to audacious experiments with the objective of producing autochthonous food to support and develop cattle raising and, therefore, achieve the sustainability of national livestock.
 
The anecdote, written nearly at the end of a modest prison diary with some bitter memories after 15 years in prison and separated from his homeland and his family, is worthy of mention to understand the meaning of science according to the experienced revolutionary leader.