It was merely a question of one man, and he awake, having power to act without first submitting a request to somebody in triplicate on blue-form B. The time came, after a month or two, when even natives dared to leave their houses after dark.
"Rung Ho!"
Talbot Mundy
So we may say that craving and capacity for brain work plus ardor plus perseverance in its pursuit, the triplicate of natural ability, are the reflections in conduct and character of balanced and sufficient ante-pituitary, thyroid, and adrenal-interstitial contributions in the chemical formula of the personality.
"The Glands Regulating Personality"
Louis Berman, M.D.
To obviate this difficulty, it was often necessary to set up the paper in duplicate, and sometimes, when late, in triplicate: but the improvements in the printing machines have been so great, that four thousand copies are now printed on one side in an hour.
"On the Economy of Machinery and Manufactures"
Charles Babbage