"At issue was the question whether this man's faith could prevail against a man whose equal faith it was that this society is sick beyond saving, and that mercy itself pleads for its swift extinction and replacement by another."
"That last day does not bring extinction to us, but change of place."
"The death of democracy is not likely to be an assassination from ambush. It will be a slow extinction from apathy, indifference, and undernourishment."
"It's a matter of life and death for this country. The Kenyan forests are facing extinction and it is a man-made problem."
"The struggle for existence holds as much in the intellectual as in the physical world. A theory is a species of thinking, and its right to exist is coextensive with its power of resisting extinction by its rivals."
"The government of the United States is a device for maintaining in perpetuity the rights of the people, with the ultimate extinction of all privileged classes."