Quotes about motivation and change | Quotes of famous people

“A common habit of thought… is the idea that space is [a] simple receptacle in which bodies move around, with no two bodies present at the same point. …In modern quantum physics generally, and in the standard model of fundamental physics in particular, physical space appears as a far more flexible framework. Many kinds of particles can be present at the same point in space at the same time. Indeed, the primary ingredients of the standard model are not particles at all, but an abundance of quantum fields, each a complex object in itself, and all omnipresent.”

Frank Wilczek (1951) physicist

"Multiversality" (2013)

“There seems to be a kind of order in the universe, in the movement of the stars and the turning of the earth and the changing of the seasons, and even in the cycle of human life. But human life itself is almost pure chaos. Everyone takes his stance, asserts his own rights and feelings, mistaking the motives of others, and his own.”

Katherine Anne Porter (1890–1980) American journalist, essayist, short story writer, novelist, and political activist

Writers at Work interview (1963)

“Don't join the book burners. Don't think you are going to conceal faults by concealing evidence that they ever existed. Don't be afraid to go in your library and read every book, as long as that document does not offend our own ideas of decency. That should be the only censorship.”

Dwight D. Eisenhower (1890–1969) American general and politician, 34th president of the United States (in office from 1953 to 1961)

Remarks at the Dartmouth College Commencement Exercises http://www.eisenhower.archives.gov/all_about_ike/quotes.html#censorship (14 June 1953)
1950s

“Words are life. Words are light. Words are power. Words are energy. Words are truth. Words can enliven and words can also kill. Words can give hope, or plunge us into despair. People use words to build peace, and use words to make war. Words can create walls between cultures, religions, and nations. And words can also build bridges. The existence of an individual, a family, a community, a country, and our planet is being led to good or to evil through the power of the words we speak. The words we speak are responsible for everything that happens in this world. We, therefore, must be responsible for the words we speak. On behalf of future generations, I hope that each of us will do all we can to speak only bright, light-filled words, so that one day, our descendants will be born into a world filled with light. There is no time to lose. Starting at this very moment, I hope all of us will take a close look at the words we have been using and make constant efforts to fill them with brightness.”

Alexis Karpouzos (1967)

Source: https://www.goodreads.com/author/show/14108295.alexis_karpouzos

“Yesterday is history. Tomorrow is a mystery. Today is a gift. That's why it's called the present.”

Alice Morse Earle (1851–1911) American historian

“Keep smiling, because life is a beautiful thing and there's so much to smile about.”

Marilyn Monroe (1926–1962) American actress, model, and singer

“All you need is the plan, the road map, and the courage to press on to your destination.”

Earl Nightingale (1921–1989) American motivational speaker

“Do not pray for easy lives. Pray to be stronger men.”

John F. Kennedy (1917–1963) 35th president of the United States of America

“The leaves in autumn do not change color from the blighting touch of frost, but from the process of natural decay. They fall when the fruit is ripened, and their work is done. And their splendid coloring is but their graceful and beautiful surrender of life when they have finished their summer offering of service to God and man. And one of the great lessons the fall of the leaf teaches is this : Do your work well, and then be ready to depart when God shall call.”

Tryon Edwards (1809–1894) American theologian

Source: A Dictionary of Thoughts, 1891, p. 33.

“We come to love not by finding the perfect person, but by learning to see an imperfect person perfectly.”

Angelina Jolie (1975) American actress, film director, and screenwriter

“Darkness cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that.”

Martin Luther King, Jr. (1929–1968) American clergyman, activist, and leader in the American Civil Rights Movement

'Where Do We Go From Here?" as published in Where Do We Go from Here : Chaos or Community? (1967), p. 62; many statements in this book, or slight variants of them, were also part of his address Where Do We Go From Here?" which has a section below. A common variant appearing at least as early as 1968 has "Returning violence for violence multiplies violence..." An early version of the speech as published in A Martin Luther King Treasury (1964), p. 173, has : "Returning hate for hate multiplies hate..."
1960s
Source: A Testament of Hope: The Essential Writings and Speeches
Context: The ultimate weakness of violence is that it is a descending spiral, begetting the very thing it seeks to destroy. Instead of diminishing evil, it multiplies it. Through violence you may murder the liar, but you cannot murder the lie, nor establish the truth. Through violence you may murder the hater, but you do not murder hate. In fact, violence merely increases hate. So it goes. … Returning hate for hate multiplies hate, adding deeper darkness to a night already devoid of stars. Darkness cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that.

“Let the beauty of what you love be what you do.”

Rumi (1207–1273) Iranian poet

As quoted in Path for Greatness : Spiritualty at Work (2000) by Linda J. Ferguson, p. 51

“The more it changes, the more it’s the same thing.”

Alphonse Karr (1808–1890) French critic, journalist, and novelist

Plus ça change, plus c'est la même chose.
The more it changes, the more it stays the same. http://www.oxforddictionaries.com/definition/english/plus-%C3%A7a-change
The more things change, the more they stay the same. https://en.wiktionary.org/wiki/the_more_things_change,_the_more_they_stay_the_same
The more that things change, the more they stay the same.
It changes superficially; but, underneath, its essence is always the same.
Les Guêpes, January 1849, vi
Also quoted by Rush in “Circumstances,” Hemispheres (October 29, 1978).

“His life had been a sum of half-hearted decisions.”

José Baroja book El hombre del terrón de azúcar y otros cuentos

“Life is really simple, but we insist on making it complicated.”

Confucius (-551–-479 BC) Chinese teacher, editor, politician, and philosopher

Attributed on the internet but not found in print prior to an attribution in Aero Digest, Vols. 58–59, 1949, p. 115 https://books.google.com/books?id=q2ofAQAAMAAJ&dq=%22Life+is+simple%22+but+we+insist+on+making+it+complicated&focus=searchwithinvolume&q=%22Life+is+simple%22+
Misattributed, Not Chinese