Those who achieve great things must have hatred in their hearts; only with hatred can one be ruthless. After enduring great hardships, to achieve a final goal, one must surpass ordinary feelings and emotions. If you feel pain, you must look back; if you suffer defeat, you must turn the tables. Return hatred with hatred and respond to ruthlessness with ruthlessness. One must remain focused and give it their all. The heroes of ancient times were forged through struggle, and great undertakings in the world arise from pressure. Without aggression, one cannot achieve fatal results; without poison, there can be no rebirth. Those who achieve great things must endure hardships and face death without regret. They can transform tempered steel into softness that wraps around the fingers. Being in adversity without changing one's original intention, a person only knows what it means to live after having died once. A heart only understands what great emotions and desires are after being boiled in boiling water, after being fried in hot oil, and after rolling on the edge of a blade. Ruthlessness serves friendship, and human feelings comply with natural law. Letting go of small thoughts is for the sake of greater righteousness. You must transform your spirit into a pure land, turn mundane thoughts into great ambitions, and cultivate yourself into an invincible diamond. Knowledge is precisely gained in difficult situations; if there were no difficulties in the world, there would be no so-called knowledge.