Anybody who has been seriously engaged is scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: 'Ye must have faith.' It is a quality which the scientist cannot dispense with.
Source: In The Speaker's Electronic Reference Collection, AApex Software, 1994.
-- Max Planck, (Apr 23 1858-1947), German physicist; He pioneered modern physics by proposing the quantum theory, 1900-01; won 1918 Nobel Prize.