The universe is unfolding as it should.

The history of astronomy is a history of receding horizons.

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.

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.

I knew that even if I were second or third rate, it was astronomy that mattered.

A scientist naturally and inevitably ... mulls over the data and guesses at a solution. He proceeds to testing of the guess by new data-predicting the consequences of the guess and then dispassionately inquiring whether or not the predictions are verified.