"They must therefore not spoil Alexander's undertaking, especially when they were almost at the close of their toils, and were, moreover, no longer in any difficulty about provisions on their coasting cruise"

This quote by Arrian is describing the Macedonian army's journey to India. The army had actually been taking a trip for a very long time and were close to completion of their journey. Arrian is recommending that the army must not let their hard work go to squander and should advance their journey, regardless of the fact that they no longer had to stress over finding food. He is emphasizing the value of determination and devotion, even when completion remains in sight. He is also highlighting the value of not giving up, even when the task at hand is challenging. This quote is a reminder that effort and devotion can cause success, and that it is very important to remain concentrated and inspired, even when completion remains in sight.