God is known by nature in his works, and by doctrine in his revealed word.

For my part I consider the earth very noble and admirable precisely because of the diverse alterations, changes, generations, etc. that occur in it incessantly.

Holy Scripture could never lie or err...its decrees are of absolute and inviolable truth.

They who depend upon manifest observations will philosophize better than those who persist in opinions repugnant to the senses.

In my studies of astronomy and philosophy I hold this opinion about the universe, that the Sun remains fixed in the centre of the circle of heavenly bodies, without changing its place; and the Earth, turning upon itself, moves round the Sun.

To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement 'I do not know'.

They know that it is human nature to take up causes whereby a man may oppress his neighbor, no matter how unjustly. ... Hence they have had no trouble in finding men who would preach the damnability and heresy of the new doctrine from the very pulpit.