Famous quotes containing the words exact and/or nature:
“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)
“The deep of night is crept upon our talk,
And nature must obey necessity.”
—William Shakespeare (1564–1616)