Among the authorities it is generally agreed that the Earth is at rest in the middle of the universe, and they regard it as inconceivable and even ridiculous to hold the opposite opinion. However, if we consider it more closely the question will be seen to be still unsettled, and so decidedly not to be despised. For every apparent change in respect of position is due to motion of the object observed, or of the observer, or indeed to an unequal change of both.
Nicolaus CopernicusSo, influenced by these advisors and this hope, I have at length allowed my friends to publish the work, as they had long besought me to do.
Nicolaus CopernicusMoreover, since the sun remains stationary, whatever appears as a motion of the sun is really due rather to the motion of the earth.
Nicolaus CopernicusIf there be some who, though ignorant of all mathematics . . . dare to reprove this work, because of some passage of Scripture, which they have miserably warped to their purpose, I regard them not, and even despise their rash judgement.
Nicolaus CopernicusIn the midst of all dwells the Sun. For who could set this luminary in another or better place in this most glorious temple, than whence he can at one and the same time brighten the whole.
Nicolaus Copernicus