A doctrine serves no purpose in itself, but it is indispensable to have one if only to avoid being deceived by false doctrines.
Simone Weil

A pretty little collection of weaknesses and a terror of spiders are our indispensable stock-in-trade with the men.
Sidonie Gabrielle Colette

A theatre receives recognition through its initiative, which is indispensable for first-rate performances.
Franz Liszt

After all, the universe required ten billion years of evolution before life was even possible; the evolution of the stars and the evolving of new chemical elements in the nuclear furnaces of the stars were indispensable prerequisites for the generation of life.
John Polkinghorne

America's highways, roads, bridges, are an indispensable part of our lives. They link one end of our nation to the other. We use them each and every day, for every conceivable purpose.
Christopher Dodd

An easy-going husband is the one indispensable comfort of life.
Ouida

Being a part of success is more important than being personally indispensable.
Pat Riley

Charlatanism of some degree is indispensable to effective leadership.
Eric Hoffer

"Charm" - which means the power to effect work without employing brute force - is indispensable to women. Charm is a woman's strength just as strength is a man's charm.
Henry Ellis

Co-operation between governments still plays an important role and will remain indispensable.
Lionel Jospin

Curiosity is idle only to those who fail to realize that it may be a very rare and indispensable thing.
James Harvey Robinson

Democracy is indispensable to socialism.
Vladimir Lenin

Direct observation of the luminous essence of nature is for me indispensable.
Robert Delaunay

Don't think of yourself as indispensable or infallible. As Charles De Gaulle said, the cemeteries of the world are full of indispensable men.
Donald Rumsfeld

Everyone should unconditionally accept that Israel is an indispensable element of the Middle Eastern mosaic.
Recep Tayyip Erdogan

Few characters in history are indispensable.
Albert Bushnell Hart

Firefighters are indispensable foot soldiers here at home.
Christopher Dodd

For art to exist, for any sort of aesthetic activity to exist, a certain physiological precondition is indispensable: intoxication.
Friedrich Nietzsche

Freedom of expression is the matrix, the indispensable condition, of nearly every other form of freedom.
Benjamin Cardozo

Generality is, indeed, an indispensable ingredient of reality; for mere individual existence or actuality without any regularity whatever is a nullity. Chaos is pure nothing.
Charles Sanders Peirce