All nature is a vast symbolism: Every material fact has sheathed within it a spiritual truth.

- Edwin Powell Hubble

The history of astronomy is a history of receding horizons.

- Edwin Powell Hubble

The great spirals... apparently lie outside our stellar system.

- Edwin Powell Hubble

The universe is unfolding as it should.

- Edwin Powell Hubble

Wisdom cannot be directly transmitted, and does not readily accumulate through the ages.

- Edwin Powell Hubble

Past time is finite, future time is infinite.

- Edwin Powell Hubble

Science is the one human activity that is totally progressive.

- Edwin Powell Hubble

Science is the one human activity that is truly progressive. The body of positive knowledge is transmitted from generation to generation.

- Edwin Powell Hubble

With increasing distance, our knowledge fades, and fades rapidly. Eventually, we reach the dim boundary-the utmost limits of our telescopes. There, w…

- Edwin Powell Hubble