Answer:
Dr. Osar Arias Sánchez's advice is that either nations send agricultural tools or leave his country alone instead of sending or "hoarding weapons of war".
Step-by-step explanation:
In his Nobel acceptance speech, Dr. Oscar Arias Sánchez pleads with the international powers to "leave" his country of Costa Rica alone. This was because he wants peace for his country and wants the powerful nations to either send 'agricultural tools' for development or not get involved at all.
Dr. Sánchez points out that "[if such nations] cannot top hoarding weapons of war, then, in the name of God, at least leave us in peace." He also openly declares "let Central Americans decide the future of Central America. Leave the interpretation of and the compliance with the peace plan to us." And if the nations are unable to 'refrain' themselves from 'helping out', then he points that they "[should send] not swords but plowshares, not spears but pruning hooks." Such "tools" are better and also desirable for his country to have peace.