Therefore, having obtained the opportunity from these sources, I too began to consider the mobility of the earth.

Quote by Nicolaus Copernicus

Topics: Nicolaus Copernicus Quotes

For it is the duty of an astronomer to compose the history of the celestial...

For it is the duty of an astronomer to compose the history of the celestial...

The earth also is spherical, since it presses upon its center from every direction.

The earth also is spherical, since it presses upon its center from every direction.

Pouring forth its seas everywhere, then, the ocean envelops the earth and fills its deeper...

Pouring forth its seas everywhere, then, the ocean envelops the earth and fills its deeper...

Therefore, when I considered this carefully, the contempt which I had to fear because of...

Therefore, when I considered this carefully, the contempt which I had to fear because of...

At rest, however, in the middle of everything is the sun.

At rest, however, in the middle of everything is the sun.

Finally we shall place the Sun himself at the center of the Universe.

Finally we shall place the Sun himself at the center of the Universe.

More stars in the north are seen not to set, while in the south certain...

More stars in the north are seen not to set, while in the south certain...

I can easily conceive, most Holy Father, that as soon as some people learn that...

I can easily conceive, most Holy Father, that as soon as some people learn that...

Yet if anyone believes that the earth rotates, surely he will hold that its motion...

Yet if anyone believes that the earth rotates, surely he will hold that its motion...

In so many and such important ways, then, do the planets bear witness to the...

In so many and such important ways, then, do the planets bear witness to the...

First of all, we must note that the universe is spherical.

First of all, we must note that the universe is spherical.

For I am not so enamoured of my own opinions that I disregard what others...

For I am not so enamoured of my own opinions that I disregard what others...

Moreover, since the sun remains stationary, whatever appears as a motion of the sun is...

Moreover, since the sun remains stationary, whatever appears as a motion of the sun is...

Of all things visible, the highest is the heaven of the fixed stars.

Of all things visible, the highest is the heaven of the fixed stars.

So far as hypotheses are concerned, let no one expect anything certain from astronomy, which...

So far as hypotheses are concerned, let no one expect anything certain from astronomy, which...

We regard it as a certainty that the earth, enclosed between poles, is bounded by...

We regard it as a certainty that the earth, enclosed between poles, is bounded by...

I shall now recall to mind that the motion of the heavenly bodies is circular,...

I shall now recall to mind that the motion of the heavenly bodies is circular,...

Those things which I am saying now may be obscure, yet they will be made...

Those things which I am saying now may be obscure, yet they will be made...

Therefore, in the course of the work I have followed this plan: I describe in...

Therefore, in the course of the work I have followed this plan: I describe in...

The massive bulk of the earth does indeed shrink to insignificance in comparison with the...

The massive bulk of the earth does indeed shrink to insignificance in comparison with the...