Famous quotes containing the words constant and/or positive:
“I should say that the most prominent scientific men of our country, and perhaps of this age, are either serving the arts and not pure science, or are performing faithful but quite subordinate labors in particular departments. They make no steady and systematic approaches to the central fact.... There is wanting constant and accurate observation with enough of theory to direct and discipline it. But, above all, there is wanting genius.”
—Henry David Thoreau (18171862)
“Blessed be the inventor of photography! I set him above even the inventor of chloroform! It has given more positive pleasure to poor suffering humanity than anything else that has cast up in my time or is like tothis art by which even the poor can possess themselves of tolerable likenesses of their absent dear ones. And mustnt it be acting favourably on the morality of the country?”
—Jane Welsh Carlyle (18011866)