War is the province of danger and therefore courage above all things is the first quality of a warrior.
The ocean is not just a resource; it's a responsibility.
The most important political development of the last half century has been the spread of liberal democracy around the world.
你是自己故事的作者。
The development of MRI has revolutionized the field of medical imaging, allowing us to see inside the human body in ways that were previously unimaginable.