I am well convinced that Aerial Navigation will form a…

I may be expediting the attainment of an object that will in time be found of great importance to mankind; so much so, that…

— George Cayley

These phantoms speak with human voices . . . able to vanish or appear at will, to pass in and out through the walls…

— Charles Lindbergh

Had there been no difficulties and no thorns in the way, then man would have been in his primitive state and no progress made…

— Al Diamond

Practical application is found by not looking for it, and one can say that the whole progress of civilization rests on that principle.

— Jacques Hadamard

In the final analysis, the progress of our civilization will be retarded if any large body of citizens falls behind. Without the help of…

— Franklin D. Roosevelt

[T]he progress of civilization corresponds with the spread of general nausea.

— Edgar Saltus

Labor, with its coarse raiment and its bare right arm, has gone forth in the earth, achieving the truest conquests and rearing the most…

— Edwin Hubbel Chapin

All the stuff that makes life worth living is produced privately, and all that the government does is slow down the progress of civilization…

— Llewellyn Rockwell

The United States has lost her unique position as a leader in the progress of civilization and has taken up her place simply as…

— Charles Eliot Norton

Progress in civilization has been accompanied by progress in cookery.

— Fannie Farmer

Let no one refer to the sword of Napoleon I as the instrument of progress and civilization!

— Elie Ducommun

More and more I come to value charity and love of one's fellow being above everything else...All our lauded technological progress-our very civilization-is like…

— Albert Einstein

The line of least resistance in the progress of civilization is to make that theoretical postulate real by the continually increasing force of the…

— Elihu Root

The measure of progress of civilization is the progress of the people.

— George Bancroft

War, we are told, shapes character; it resolves the major questions of international politics, consolidates nations, and indeed, constitutes the principal factor in the…

— Elie Ducommun