Superstition may be defined as constructive religion which has grown incongruous with intelligence.
Science and Man
Knowledge once gained casts a faint light beyond its own immediate boundaries.John Tyndall
The brightest flashes in the world of thought are incomplete until they have been proved to have their counterparts in the world of fact.John Tyndall
It is as fatal as it is cowardly to blink facts because they are not to our taste.John Tyndall
Religious feeling is as much a verity as any other part of human consciousness; and against it, on the subjective side, the waves of science beat in vain.John Tyndall