“Life is a constant adaptation.”

“Life is a constant process of dying.”

Arthur Schopenhauer (1788–1860) German philosopher

“All of life is a constant education.”

Eleanor Roosevelt (1884–1962) American politician, diplomat, and activist, and First Lady of the United States

“Life is neither static nor unchanging. With no individuality, there can be no change, no adaptation and, in an inherently changing world, any species unable to adapt is also doomed.”

Jean M. Auel (1936) Novelist

“Humane science must be adapted to the requirements of a balanced and rewarding life.”

Paul Karl Feyerabend (1924–1994) Austrian-born philosopher of science

“There are three constants in life… Change, Choice and Principles.”

Stephen R. Covey (1932–2012) American educator, author, businessman and motivational speaker

“Is there an objective aspect that remains constant through time? Or are we more like open systems or processes within the constant flow of life?”

F. David Peat (1938–2017) British physicist

“Life is never stagnation. It is constant movement, unrhythmic movement, as we as constant change. Things live by moving and gain strength as they go.”

Bruce Lee (1940–1973) Hong Kong-American actor, martial artist, philosopher and filmmaker

“The art of life lies in a constant readjustment to our surroundings.”

Kakuzo Okakura book The Book of Tea

“Life is a constant oscillation between the sharp horns of a dilemma.”

H.L. Mencken (1880–1956) American journalist and writer