Alfred North Whitehead

"A man of science is a creature who abandons certainty."

"Every science must develop its own vocabulary; otherwise it remains a mere collection of facts."

"The use of mathematical language must be learned before mathematical thinking can begin."

"Metaphysics is the most perilous of subjects."

"Style, in its finest sense, is the last acquirement of the educated mind."

"Practical people are the most idealistic of all."

"There is a paradox at the heart of every science."

"The art of progress is to preserve order amid change."

"Foresight, not hindsight, is the mark of wisdom."

"The clash of doctrines is not a disaster; it is an opportunity."

"Nature is a theatre of transition, not a museum of static forms."

"The human spirit is the subject of education."

"In each age of the world distinct ideas have ruled."

"The poetry of mathematics is the most romantic of all poems."

"Patience and perseverance are the twin virtues of success."

"We are only just now realizing what our ancestors took for granted."

"The foundation of tolerance is sympathy."

"No system of thought is ever final; there is always more to learn."

"Freedom is a dangerous thing if divorced from wisdom."

"Life is the art of drawing sufficient conclusions from insufficient premises."

"The essence of being human is to work against the chaos of existence."

"Innovation is born of the willingness to question tradition."

"The heart of religion is not doctrine but communion."

"To be alive is to be subject to forces beyond your understanding."

"The greatest tragedies are those that could have been prevented."

"Gratitude is the sign of noble souls."

"The power of imagination is the foundation of all progress."

"In a world of process, standing still is moving backward."

"The test of a first-rate intelligence is the ability to hold contradictory ideas."

"Understanding without feeling is sterile knowledge."