The promise given was a necessity of the past: the word broken is a necessity of the present.
Niccolò Machiavelli
There is no necessity to separate the monarch from the mob; all authority is equally bad.
Oscar Wilde
Protection is the first necessity of opulence and luxury.
Joseph Conrad
Necessity, the mother of invention.
William Wycherley
In the last analysis it is our conception of death which decides our answers to all the questions life puts to us ... Hence too the necessity of preparing for it.
Dag Hammarskjld
If there is anything good about nobility it is that it enforces the necessity of avoiding degeneracy.
Boethius
It occurred to me that if I could invent a machine - a gun - which could by its rapidity of fire, enable one man to do as much battle duty as a hundred, that it would, to a large extent supersede the necessity of large armies, and consequently, exposure to battle and disease [would] be greatly diminished.â€
Richard Jordan Gatling
If necessity is the mother of invention, discontent is the father of progress.
David Rockefeller
Discontent is the first necessity of progress.
Thomas Alva Edison
Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.
Thomas Alva Edison
Contemplative and bookish men must of necessity be more quarrelsome than others, because they contend not about matter of fact, nor can determine their controversies by any certain witnesses, nor judges. But as long as they go towards peace, that is Truth, it is no matter which way.
John Donne
Tis plain that there is not in nature a point of stability to be found: everything either ascends or declines. When wars are ended abroad, sedition begins at home, and when men are freed from fighting for necessity, they quarrel through ambition.
Sir Walter Scott
No age, sex, or condition is above or below the absolute necessity of modesty; but without it one is vastly beneath the rank of man.
Bernard Barton
No sex, age, or condition is above or below the absolute necessity of modesty; but without it one vastly beneath the rank of man.
Bruce Barton
There is no doubt that we cannot do without variable quantities in the sense of the potential infinite. But from this very fact the necessity of the actual infinite can be demonstrated.
Georg Ferdinand Ludwig Philipp Cantor