Words dazzle and deceive because they are mimed by the face.But black words on a white page are the soul laid bare.

因此，教学艺术无非是时间、科目和方法的巧妙安排。

The mind will ever be unstable that has only prejudices to rest on.

制造业真正的领导力意味着把环境放在与利润同等重要的位置。

Sustainability is not a destination but a journey that requires continuous improvement and innovation.

I’ve learned over the years that the market is always right.

在数学中，提出问题的艺术必须比解决问题更有价值。