João Lourenço was speaking at the opening of a meeting with the country's military chiefs, at the headquarters of the army, which celebrates 29 years of existence.
The head of state asked the law enforcement and demonstrators to make sure that during the demonstration each fulfills its role, without harassing the others.
"It is possible to carry out orderly demonstrations that still achieve their objective, that of taking the message intended to the authorities and to society," said João Lourenço, appealing to all Angolans to enjoy the rights and freedoms to which they are entitled, with responsibility and civility.
"I invite everyone to accept the challenge of showing that it is possible in Angola to have a possible cohabitation between the forces of order and the demonstrators, making sure that during the demonstration each one fulfills his role without harassing the others", he stressed.
On the other hand, the President condemned some young people who, in the demonstration held on the 10th of this month, led "the outrage and desecration of the figure of António Agostinho Neto, father of the nation".
According to João Lourenço, this attitude does not dignify the youth, which throughout the country's history "has shown good education, respect for national symbols and historical figures, has shown proof of patriotism".
"Destroying public or private property, outraging, offending or threatening death, no matter who, it is not to manifest, are condemnable acts", said the head of state, stressing that "there is no need for physical or verbal aggression against the authorities , against citizens or against journalists from organizations that apparently do not support the demonstrations ".
João Lourenço said that the forces of order must exercise the authority of the State firmly, whenever the situation advises, but also with some restraint, always trying to find points of balance between the need to establish order and the citizens' right to demonstrate.
"They are not to accept gratuitous excesses from the forces of order, nor are they to accept gratuitous excesses on the part of the demonstrators," he said.
According to the President, the ultimate aim of the demonstrations is to draw the attention of the authorities to situations that the citizens consider that can be improved, corrected, for the benefit of the communities, "there is no need to vandalize public or private goods ".
Two events are scheduled for this Saturday, one organized by the National Union of Doctors of Angola and the second by politician Abel Chivukuvuku, who saw the legalization of his political project, called PRA-JA Servir Angola, failing the Constitutional Court.
