The world has the technology - either available or well advanced in the research pipeline - to feed on a sustainable basis a population of 10 billion people.
"All true stories are about the meeting of opposites."
The universe is a vast and complex system, and understanding it requires both theoretical insights and observational evidence.
The beauty of science is that it allows us to explore the unknown and uncover the mysteries of life.
科学的美妙之处在于它让我们能够探索未知并揭开生命的奥秘。