"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them." - Bragg, Sir William

"In science, 'fact' can only mean 'confirmed to such a degree that it would be perverse to withhold provisional assent.' I suppose that apples might start to rise tomorrow, but the possibility does not merit equal time in physics classrooms." - Gould, Stephen Jay

"Facts are the air of scientists. Without them you can never fly." - Pavlov, Ivan (1849-1936) [Russian physiologist]