我不习惯安逸。我只在不舒服的时候才感到舒服。
对于人类曾经信仰的大多数神，我们都是无神论者。有些人只是更进一步，连一个神都不信。
Appreciate everything your associates do for the business. Nothing else can quite substitute for a few well-chosen, well-timed, sincere words of praise. They're absolutely free and worth a fortune.
The brilliance of truth often shines in adversity.
Safety and sustainability are the cornerstones of modern mining.
——1963年6月25日在西德市政厅柏林墙前的演说