George Boole

“The validity of the processes of analysis does not depend upon the interpretation of the symbols which are employed, but solely upon the laws of their combination.”

“That which makes us capable of education is the perception of order and harmony.”

“Probability is expectation founded upon partial knowledge.”

“The theory of Logic is thus intimately connected with that of Language.”

“The design of the following treatise is to investigate the fundamental laws of those operations of the mind by which reasoning is performed.”

“A perfect acquaintance with all the circumstances affecting the occurrence of an event would change expectation into certainty, and leave no room for a theory of probabilities.”

“No matter how correct a mathematical theorem may appear to be, one ought never to be satisfied that there was not something imperfect about it until it also gives the impression of being beautiful.”

“The intellectual power of man is not a-wandering thing, but has a fixed law and order of its own.”

“We must not adopt the view that the interests of philosophy and of science are mutually opposed.”

“It is not of the essence of mathematics to be conversant with the ideas of number and quantity.”

“It is upon the foundation of this primary motive, the desire of association, that all the structures of human society are built.”