Equipped with our five senses - along with telescopes and microscopes and mass spectrometers and seismographs and magnetometers and particle accelerators and detectors sensitive to the entire electromagnetic spectrum - we explore the universe around us and call the adventure science.

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

Astronomy is something like the ministry. No one should go into it without a call. I got that unmistakable call, and I know that even if I were second-rate or third-rate, it was astronomy that mattered.

The universe is unfolding as it should.

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

Observations always involve theory.

Past time is finite, future time is infinite.