Inertial Reference System

Famous quotes containing the words reference and/or system:

“If we define a sign as an exact reference, it must include symbol because a symbol is an exact reference too. The difference seems to be that a sign is an exact reference to something definite and a symbol an exact reference to something indefinite.”
—William York Tindall (1903–1981)

“A heresy can spring only from a system that is in full vigor.”
—Eric Hoffer (1902–1983)