The true measure of a man is how he treats someone who can do him absolutely no good.

Sustainability isn't a choice anymore—it's the only way forward for responsible businesses.

"The future belongs to those who can collaborate across boundaries."

Sustainability is the future of quarrying, and we must act now.

He can say to himself, "Somewhere, my flower is there…" But if the sheep eats the flower, in one moment all his stars will be darkened… And you think that is not important!

True understanding comes from grasping the inner structural relationships of a problem.