A HEAVY WAGON was being dragged along a country lane by a team of Oxen. The Axle-trees groaned and creaked terribly; whereupon the Oxen, turning round, thus addressed the wheels: “Hullo there! why do you make so much noise? We bear all the labor, and we, not you, ought to cry out.” What is the theme of the story

The person who really suffers knows its difficulty.

Explanation:

the apollo program, also known as project apollo, was the third united states human spaceflight program carried out by the national aeronautics and space administration (nasa), which succeeded in landing the first humans on the moon from 1969 to 1972.