It is a beautiful and delightful sight to behold the body of the Moon.

My dear Kepler, what would you say of the learned here, who, replete with the pertinacity of the asp, have steadfastly refused to cast a glance through the telescope? What shall we make of this? Shall we laugh, or shall we cry?

It vexes me when they would constrain science by the authority of the Scriptures, and yet do not consider themselves bound to answer reason and experiment.

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.

The prohibition of science would be contrary to the Bible, which in hundreds of places teaches us how the greatness and the glory of God shine forth marvelously in all His works, and is to be read above all in the open book of the heavens.

Measure what can be measured, and make measureable what cannot be measured.

By denying scientific principles, one may maintain any paradox.