Equipped with his five senses, man explores the universe around him and calls the adventure Science.
source: - Edwin Powell Hubble (1954). “The Nature of Science: And Other Lectures”
Topics: Motivational, Travel, Adventure, Space Science, Space Travel

The history of astronomy is a history of receding horizons.
source: - Edwin Powell Hubble (1936). “The Realm of the Nebulæ”
Topics: Horizon, Astronomy, Cosmology, Hubble Space Telescope
Science is the one human activity that is totally progressive.
source: - "The Realm of the Nebulae". Book by Edwin Powell Hubble, 1936.
Topics: Progressive, Humans
Topics: Space, Ministry, Astronomy, Second Rate
source: - Edwin Powell Hubble (1920). “Photographic Investigations of Faint Nebulae ...”
source: - Norriss S. Hetherington, Edwin Powell Hubble (1996). “Hubble's Cosmology: A Guided Study of Selected Texts”
The great spirals... apparently lie outside our stellar system.
Topics: Lying, Spirals, Stellar, Hubble Space Telescope
Past time is finite, future time is infinite.
source: - Edwin Powell Hubble (1937). “The Observational Approach to Cosmology”
Topics: Time, Science, Past, Future Time
source: - Quoted in Dennis Overbye Lonely Hearts of the Cosmos (1991).
Topics: Errors, Shadow, Measurement, Landmarks
Topics: Adventure, Vision, Five Senses
Observations always involve theory.
source: - Edwin Powell Hubble (1936). “The Realm of the Nebulæ”
Topics: Environment, Theory, Observation
source: - Edwin Powell Hubble (1936). “The Realm of the Nebulæ”
Topics: Knowledge, Generations, Body
All nature is a vast symbolism: Every material fact has sheathed within it a spiritual truth.
Topics: Spiritual, Nature, Symbolism, Spiritual Truth
source: - "Edwin Hubble: Mariner of the Nebulae" by Gale E. Christianson, (p. 1830, 1996.