George Berkeley

"A little learning and a great many numbers puzzle and confound people."

"It is thought, or the idea of something in the mind of God, that keeps the universe in existence."

"The whole scene of sensible things is but a phantom that cannot subsist independently."

"We live in a perpetual storm of cause and effect as we perceive it."

"To discourse of numbers, magnitude, and motion abstractly is a hard thing."

"The soul is not imprisoned in the body; rather, it is imprisoned by its own ignorance."

"All natural things depend upon a spirit or mind for their existence."

"The most material error is the thinking that things have an absolute existence without the mind."

"Ambition often puts men upon doing the meanest offices."

"Freedom is not the absence of constraint but the proper ordering of the soul."

"Beauty and moral worth are not matters of calculation or measure."

"The connection of natural phenomena reveals the wisdom of the Supreme Being."

"Words are the tokens of ideas, and all knowledge is ultimately traceable to perception."

"To abstract is to separate in the mind what is necessarily united in nature."

"Every idea in the mind corresponds to an object outside the mind, if that object exists."

"The advancement of real knowledge is the sole object of philosophy."

"The same objections that lie against absolute motion lie against relative motion."

"A true Christian must work for the good of all mankind."

"The apparent motion of bodies may be reduced to absolute rest and motion."

"Admiration is the daughter of ignorance."

"The ideas which we perceive are not the real things themselves."

"It is absurd to think that the immense expanse of the fixed stars should be scattered throughout an infinite void."

"All extension is the immediate object of the mind."

"The invisible hand of Providence guides all natural operations."

"To extend existence beyond the mind is to contradict the very meaning of existence."

"The objects we perceive are collections of ideas united by the mind."

"It is a shame and scandal to hear the learned speak unintelligibly to the unlearned."

"The motion of the earth cannot be demonstrated."

"Nothing is naturally immortal but ideas; bodies are in perpetual flux."

"To frame abstract ideas is a very hard thing and requires great attention."