"I hated every minute of training, but I said, "Don't quit. Suffer now and live the rest of your life as a champion.""

In this quote, Muhammad Ali reveals his dislike for training, but also his determination to push through and not quit. He acknowledges the problem and struggle of training, but advises himself to keep going and withstand the discomfort in order to achieve achievement. By using the phrase "suffer now," Ali stresses the momentary nature of the challenges he is facing and the long-term advantages that will originate from standing firm. He also highlights the idea of sacrifice and the concept that success typically requires withstanding difficulties and pain. Ultimately, Ali's words work as a tip to never ever give up and to keep pressing towards one's goals, even when confronted with hardship.