Observation always involves theory.

Equipped with his five senses, man explores the universe around him and calls the adventure Science.

The universe is unfolding as it should.

The great spirals, with their enormous radial velocities and insensible proper motions, apparently lie outside our Solar system.

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.

There we measure shadows, and we search among ghostly errors of measurement for landmarks that are scarcely more substantial.

Past time is finite, future time is infinite.