Century of the Manikin — E.C. Tubb

Dale Tulliver was his name and he was a product of the 21st Century, the era of non-violence, permanent peace, and the drugs that controlled warlike emotions. He was a police agent of the Peace Committee that controlled the world.

Naomi Constance Fisher was her name, and she had been a crusading writer of the 20th Century. She had been a vigorous advocate of world peace, woman's liberation, and social progress. She had been frozen in near-death all those decades--and then they brought her back to life to enjoy the fruits of her thinking. But instead of augmenting the forces of peace it turned out that what Dale's world meant by peace and what Naomi meant by peace were two different--and violently conflicting things.

The mixture could shatter civilization.