Everyone admits that love is wonderful and necessary, yet no one agrees on just what it is.
Diane Ackerman

In order that all men may be taught to speak the truth, it is necessary that all likewise should learn to hear it.
Samuel Johnson

Some desire is necessary to keep life in motion, and he whose real wants are supplied must admit those of fancy.
Samuel Johnson

The love of life is necessary to the vigorous prosecution of any undertaking.
Samuel Johnson

Before you speak ask yourself if what you are going to say is true, is kind, is necessary, is helpful. If the answer is no, maybe what you are about to say should be left unsaid.
Bernard Meltzer

Life is full and overflowing with the new. But it is necessary to empty out the old to make room for the new to enter.
Eileen Caddy

The difference between a tool and a machine is not capable of very precise distinction; nor is it necessary, in a popular explanation of those terms, to limit very strictly their acceptation.
Charles Babbage

Whenever the work is itself light, it becomes necessary, in order to economize time, to increase the velocity.
Charles Babbage

A baseball manager is a necessary evil.
Sparky Anderson

There are two good rules which ought to be written on every heart - never to believe anything bad about anybody unless you positively know it to be true; never to tell even that unless you feel that it is absolutely necessary, and that God is listening.
Henry Van Dyke

The fortress of Europe with its frontiers must be held and will be held too, as long as is necessary.
Heinrich Himmler

We know that these clashes with Asia and Jewry are necessary for evolution.
Heinrich Himmler

The final purpose of art is to intensify, even, if necessary, to exacerbate, the moral consciousness of people.
Norman Mailer

It is only necessary to have courage, for strength without self-confidence is useless.
Giacomo Casanova

War can only be abolished through war, and in order to get rid of the gun it is necessary to take up the gun.
Mao Zedong

It's necessary to be slightly underemployed if you are to do something significant.
James D. Watson

The fundamental laws necessary for the mathematical treatment of a large part of physics and the whole of chemistry are thus completely known, and the difficulty lies only in the fact that application of these laws leads to equations that are too complex to be solved.
Paul Dirac

How I wish we lived in a time when laws were not necessary to safeguard us from discrimination.
Barbra Streisand

Stupidly it should not be. It should be also nice. One must get along with that. Is however not necessary.
Karl Lagerfeld

Works of imagination should be written in very plain language; the more purely imaginative they are the more necessary it is to be plain.
Samuel Taylor Coleridge