This quote by Richard M. Nixon is most likely referring to a military operation. He is telling his troops to send everything that can fly, meaning all available airplane, to the mission. This could be translated as a call to action, a sign of urgency, or a program of strength. It could likewise be analyzed as a sign of desperation, as Nixon might be requesting for all readily available resources to be utilized in order to finish the mission. This quote might likewise be translated as a program of self-confidence in the soldiers, as Nixon is delegating them with the task of sending out all offered aircraft to the mission. Whatever the interpretation, this quote is a clear call to action and a sign of Nixon's dedication to the mission.
"The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom"