Famous quotes containing the words length and/or words:
“To find the length of an object, we have to perform certain
physical operations. The concept of length is therefore fixed when the operations by which length is measured are fixed: that is, the concept of length involves as much as and nothing more than the set of operations by which length is determined.”
—Percy W. Bridgman (1882–1961)
“There are words in that letter to his wife, respecting the education of his daughters, which deserve to be framed and hung over every mantelpiece in the land. Compare this earnest wisdom with that of Poor Richard.”
—Henry David Thoreau (1817–1862)