The discovery of gravitational waves was a testament to the power of human ingenuity and perseverance.
To be a writer does not mean to preach a truth, it means to discover a truth.
The whole is other than the sum of the parts.
可持续性不仅仅是一个流行词，它是负责任林业的基础。我们必须在经济增长和环境管理之间取得平衡。