Chanukah tells us to never give up, no matter how formidable the challenge. When the Hasmonian family realized that they had no choice other than to confront the Greeks and attempt the impossible, they linked up with a force beyond themselves and achieved the impossible. They reached for what beyond their grasp and were thus privileged to initiate events that transcended nature: the victory over the Greeks and the flask of oil which burned for eight days.
– Rav E.E. Dessler, Michtav meiEliyahu
(With thanks to Dr Alan Morinis for including that thought in The Mussar Institute’s Chanukah note.)