“The death of the spirit is the price of progress.”
“Error is the price we pay for progress.”
“Exploration and invention were the two faces on the coin of progress, and progress was the spirit of the age”
“Daring is the price of progress. All splendid conquests are the prize of boldness, more or less.”
“Even today, the price for speaking TRUTH is DEATH.”
“Death is not too high a price for this—This taste of heaven—”