Ptolemy

Astronomy Roman-Egyptian 100 – 170 368 quotes

Geocentric model dominated astronomy for 1400 years

Quotes by Ptolemy

When I trace the stars, I feel as if I am a god.

Almagest

The earth, in relation to the heavens, has the ratio of a point.

Almagest

The earth is stationary.

Almagest

The motion of the heavens is uniform and circular.

Almagest

It is the property of the astronomer to be able to demonstrate all the phenomena of the heavens by means of regular and circular motions.

Almagest

The sun, moon, and planets move in epicycles and deferents.

Almagest

The purpose of this treatise is to set forth the mathematical theory of the motions of the heavenly bodies.

Almagest

We shall endeavor to show that all the phenomena of the heavens can be accounted for by uniform circular motions.

Almagest

The fixed stars are all at the same distance from the earth.

Almagest

The planets move in orbits that are not perfectly circular.

Almagest

The study of astronomy is the noblest of all sciences.

Almagest

The heavens are composed of aether, which is a fifth element.

Almagest

The stars are eternal and incorruptible.

Almagest

The universe is finite.

Almagest

The motion of the planets is governed by mathematical laws.

Almagest

The most perfect motion is circular motion.

Almagest

The heavens are a model of perfection and order.

Almagest

Geography is a representation in pictures of the whole known world together with the phenomena which are contained therein.

Geographia

The earth is a sphere, and its surface is curved.

Geographia

The purpose of geography is to describe the earth's surface accurately.

Geographia