Knife-edge Quotes

When a child... discovers his own imagination, he suddenly walks into a new life. ...seeing situations that do not exist. ...in part as fantasy, and in part as a quite rational exploration of future experiences. ...play ...frolics in the fantasy world, and it experiments in the rational world... They project themselves into all worlds, possible and impossible, and discover for themselves the knife-edge boundary between them. (Jacob Bronowski)
Are you sharpness personified?” Khouri poured herself a few final sips of coffee and then left the rest of it on the stove for when she got back. Coffee was her only vice, one acquired in her soldiering days on the Edge. The trick was to reach a knife-edge of alertness, but not be so buzzing that she could not point the weapon without shaking. "I think I've reduced the amount of blood in my caffeine system to an acceptable level, if that's what you mean. View quote
Alastair Reynolds
The president's decision yesterday to set into motion the development of the hydrogen bomb... has placed us on the knife-edge of history. View quote
Henry M. Jackson