Were one to say that thoughts about hydrostatics and pneumatics are difficult to the multitude, or that mental efforts in regions of political economy or ethical philosophy are beyond ordinary reach, one would only pronounce an evident truism, an absurd platitude.
"Castle Richmond"
Anthony Trollope
Another extremely interesting invention made by Heron is the famous fountain called by his name, and which still is used to illustrate principles in pneumatics in our classrooms and laboratories.
"Education: How Old The New"
James J. Walsh
Well, I must admit that you are rather too young to study pneumatics.
"Rollo's Philosophy. [Air]"
Jacob Abbott