Chalk Quotes - page 3
Black realized that when chalk or marble was heated, a gas which he called fixed air was released. He was able to collect the gas, which we know as carbon dioxide, and to study its properties. He was also able to show that carbon dioxide was a normal constituent of the air because quicklime was changed into ordinary chalk, albeit tardily, by exposure to air. This was the first atmospheric gas to be isolated and described. The discovery heralded the dawn of a new era in chemical investigation, and so Black is often given the title-Father of Pneumatic Chemistry.
Joseph Black
Of course, Chalk had little need for further money. It had motivated him once, but not now. Nor did the acquisition of greater power please him much. Despite the customary theories, Chalk had attained sufficient power so that he was willing to stop expanding if only he could be sure of holding what he had. No, it was something else, something inner, that governed his decisions now. When the love of money and the love of power are both sated, the love of love remains.
Robert Silverberg