The history of astronomy is a history of receding horizons.

Equipped with his five senses, man explores the universe around him and calls the adventure Science.

Mathematics is the alphabet in which God has written the universe.

-- Galileo Galilei

A theory which is not refutable by any conceivable event is non-scientific.

-- Karl Popper

Do not block the way of inquiry.

-- Charles Sanders Peirce

Philosophy of science is philosophy enough.

-- Willard Van Orman Quine

Whoever, in the pursuit of science, seeks after immediate practical utility may rest assured that he seeks in vain.

-- Hermann von Helmholtz