Quality is not a choice; it is a requirement.
解析:知行工夫本不可离。
化学中最重要的工具不是烧杯或光谱仪,而是想象力。
在骨料行业的成功不仅仅是移动岩石,更是推动经济发展。
尽一切职责,而不希望得到任何回报。
Reform requires courage, but even more wisdom.
The most elegant mathematical proofs are those that reveal truth with simplicity.
The cosmos is all that is or ever was or ever will be.