I am an optimist because I want to change things for the better and I know that blood has to be spilled and disharmony and cruelty are necessary to do that.
Henry Rollins

Don't necessarily avoid sharp edges. Occasionally they are necessary to leadership.
Donald Rumsfeld

Analyzing what you haven't got as well as what you have is a necessary ingredient of a career.
Orison Swett Marden

Analyzing what you haven't got as well as what you have is a necessary ingredient of a career.
Orison Swett Marden

For centuries the leaders of Christian thought spoke of women as a necessary evil, and the greatest saints of the Church are those who despise women the most.
Annie Besant

If we have reason to believe someone is preparing an attack against the U.S., has developed that capability, harbours those aspirations, then I think the U.S. is justified in dealing with that, if necessary, by military force.
Dick Cheney

We must be prepared to face our responsibilities and be willing to use force if necessary.
Dick Cheney

There are also two kinds of truths: truth of reasoning and truths of fact. Truths of reasoning are necessary and their opposite is impossible; those of fact are contingent and their opposite is possible.
Gottfried Leibniz

The ultimate reason of things must lie in a necessary substance, in which the differentiation of the changes only exists eminently as in their source; and this is what we call God.
Gottfried Leibniz

When a truth is necessary, the reason for it can be found by analysis, that is, by resolving it into simpler ideas and truths until the primary ones are reached.
Gottfried Leibniz

This is why the ultimate reason of things must lie in a necessary substance, in which the differentiation of the changes only exists eminently as in their source; and this is what we call God.
Gottfried Leibniz

Habit is necessary; it is the habit of having habits, of turning a trail into a rut, that must be incessantly fought against if one is to remain alive.
Edith Wharton

Not the power to remember, but its very opposite, the power to forget, is a necessary condition for our existence.
Saint Basil

It's not necessary, in order to be a complete person, that I have a man. It's not the end-all, be-all of my life.
Cher

Useless laws weaken the necessary laws.
Charles de Montesquieu

I do promotion when it is necessary, but I always want to get back to the music.
Enya

Government is an evil; it is only the thoughtlessness and vices of men that make it a necessary evil. When all men are good and wise, government will of itself decay.
Percy Bysshe Shelley

Junk is the ideal product... the ultimate merchandise. No sales talk necessary. The client will crawl through a sewer and beg to buy.
William S. Burroughs

You don't concentrate on risks. You concentrate on results. No risk is too great to prevent the necessary job from getting done.
Chuck Yeager

The first and continuing argument for the curtailment of working hours and the raising of the minimum age was that education was necessary in a democracy and working children could not attend school.
Grace Abbott