A word is not a crystal, transparent and unchanged; it is the skin of a living thought and may vary greatly in color and content according to the circumstances and time in which it is used.
Oliver Wendell Holmes, Jr.

God Almighty is, to be sure, unmoved by passion or appetite, unchanged by affection; but then it is to be added that He neither sees nor hears nor perceives things by any senses like ours; but in a manner infinitely more perfect.
Joseph Butler

If that vital spark that we find in a grain of wheat can pass unchanged through countless deaths and resurrections, will the spirit of man be unable to pass from this body to another?
William Jennings Bryan

If we meet an honest and intelligent politician, a dozen, a hundred, we say they aren't like politicians at all, and our category of politicians stays unchanged; we know what politicians are like.
Randall Jarrell

In the practical world of computing, it is rather uncommon that a program, once it performs correctly and satisfactorily, remains unchanged forever.
Niklaus Wirth

Public and private food in America has become eatable, here and there extremely good. Only the fried potatoes go unchanged, as deadly as before.
Luigi Barzini

The first of these phases is that of grammar, invented by the Greeks and carried on unchanged by the French. It never had any philosophical view of a language as such.
Ferdinand de Saussure

The salability of an item can often be improved while the value itself remains unchanged.
Roy H. Williams

There is nothing like returning to a place that remains unchanged to find the ways in which you yourself have altered.
Nelson Mandela

Thus, they are free to replace some objects by others so long as the relations remain unchanged.
Henri Poincare

Ulysses finds himself unchanged, aside from his experience, at the end of his odyssey.
Raymond Queneau

When we bring back with us the objects most dear, and find those we left unchanged, we are tempted to doubt the lapse of time; but one link in the chain of affection broken, and every thing seems altered.
Marguerite Gardiner