凡事天下要考察有无的原则，必定是以众人的耳目所见所闻的实情以知有与无来作为标准的。
The essence of mathematics lies in its ability to reveal hidden patterns and structures in the universe.
The challenges of climate change demand urgent action from the scientific community.
The true journey is not about seeing new landscapes, but about having new eyes.
Innovation is not just about technology; it's about changing the way people think and act.
The real prison is not the one made of iron bars, but the one made of fear.
