Einstein, Albert

"Life is like riding a bicycle. To keep your balance, you must keep moving."

"Imagination is more important than knowledge."

"In the middle of difficulty lies opportunity."

"Life is what happens when you're busy making other plans."

"The only source of knowledge is experience."

"A person who never made a mistake never tried anything new."

"Strive not to be a person of success, but rather to be a person of value."

"The important thing is not to stop questioning."

"Creativity is intelligence having fun."

"I am enough of an artist to draw freely upon my imagination."

"Logic will get you from A to Z; imagination will get you everywhere."

"The only true wisdom is in knowing you know nothing."

"If you want to live a happy life, tie it to a goal, not to people or things."

"Great spirits have always encountered violent opposition from mediocre minds."

"The best way to predict the future is to invent it."

"Education is not the filling of a pail, but the lighting of a fire."

"Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid."

"Do not worry about your difficulties in mathematics; I can assure you that mine are still greater."

"The intuitive mind is a sacred gift and the rational mind is a faithful servant."

"Anyone who has never made a mistake has never tried anything new."

"Science is a wonderful thing if one does not have to earn one's living at it."

"The most incomprehensible thing about the world is that it is comprehensible."

"Science without religion is lame, religion without science is blind."

"The effort to understand the universe is one of the very few things that lifts human life a little above the level of farce."

"A man should look for what is, and not for what he thinks should be."

"If the facts don't fit the theory, change the facts."

"Common sense is the collection of prejudices acquired by age eighteen."

"The true sign of intelligence is not knowledge but imagination."

"Reality is merely an illusion, albeit a very persistent one."

"The only real valuable thing is intuition."