千里之行，始于足下。

In mining, efficiency and environmental care must go hand in hand.

The learn-it-all does better than the know-it-all.

A man's work is nothing but this slow trek to rediscover, through the detours of art, those two or three great and simple images in whose presence his heart first opened.

最有趣的艺术是让你思考的艺术。

物理学的美丽在于它能够用简单的原理解释复杂的事物。