What enables a seed to press through a fissure in stone, an eagle to maintain its course in turbulent skies, or a horse to run unrestrained? The answer is confidence-often the decisive catalyst of success. Without it, even highly capable people (1) ____.

A familiar illustration is Richard Nixon. In 1972, Nixon was seeking re-election as U.S. President, campaigning energetically nationwide. Many assumed he would secure a comfortable victory, given the accomplishments of his first term. Yet Nixon was burdened by insecurity. Haunted by the prospect of defeat, he made a grave misjudgment: he ordered his team to break into the Watergate Hotel to spy on his opponent. Once exposed, (2) ____. The scandal escalated rapidly and culminated in his resignation, despite the fact that he had already won the election. (3) ____.

By contrast, Madame Curie exemplified the power that confidence can generate. In her pursuit of radium, she worked in a poorly equipped laboratory and endured harsh conditions. Many ridiculed her, yet she remained steadfast in her belief in her own ability. She famously insisted, "We must have perseverance, especially confidence!" (4) ____. As a result of her pioneering accomplishments, she received two Nobel Prizes and became an enduring inspiration to generations that followed.

Confidence equips us to confront adversity and pursue meaningful achievement. Ultimately, it is only those (5) ____. Let us cultivate confidence and unlock the fullest measure of our potential.