Eratosthenes

Astronomy Ancient Greek -276 – -195 354 quotes

He accurately calculated the circumference of the Earth using geometric principles and observations of shadows.

Most quoted

"Give me a lever long enough and a fulcrum on which to place it, and I shall move the world. (Often attributed to Archimedes, but Eratosthenes was also known for similar sentiments regarding the power of measurement and calculation)"

— from Public Address

"To understand the world, one must first measure it. Measurement is not just about numbers; it is about defining boundaries, understanding relationships, and ultimately, comprehending our place within the vastness."

— from Inferred from his scientific methodology

"The Earth is a sphere, and its circumference can be measured. This knowledge, though seemingly practical, reveals the order and the measurable nature of the cosmos, hinting at a deeper, underlying truth."

— from Inferred from his work on Earth's circumference

All quotes by Eratosthenes (354)

Observation is the foundation of all scientific inquiry.

Scientific Principles Lecture

The world is far larger and more complex than we can imagine.

Public Discourse

Through careful measurement, we can unlock the secrets of the universe.

Acceptance Speech for Library Directorship

The sun's rays, though seemingly parallel, reveal the curvature of our world.

Explanation of Earth Measurement

Do not be afraid to challenge conventional wisdom with new evidence.

Debate on Earth's Flatness

The Library of Alexandria is a beacon of knowledge for all humanity.

Address to Scholars

Poetry and science, though distinct, both seek to understand the world around us.

Discussion on Arts and Sciences

The Earth is not the center of all things, but a body among many.

Astronomical Theory Lecture

Let us continue to explore, to question, and to discover.

Closing Remarks, Scientific Symposium

The pursuit of truth is its own reward.

Philosophical Reflection

Without accurate maps, navigation is mere guesswork.

Lecture on Cartography

The shadows cast by the sun are our greatest allies in understanding the Earth's form.

Explanation of Earth's Circumference

My work is but a small step in the grand journey of human understanding.

Acceptance of Honor

The universe is governed by laws that can be deciphered through reason.

Philosophical Discussion

Let us not be content with ignorance, but strive for enlightenment.

Public Call to Learning

The Earth's tilt is responsible for the changing seasons.

Astronomical Explanation

Every measurement, no matter how small, contributes to the larger picture.

Scientific Methodology Lecture

The pursuit of knowledge is a collaborative effort, spanning generations.

Address to Fellow Scholars

The stars are not fixed, but move in predictable patterns.

Lecture on Celestial Mechanics

My calculations, though imperfect, offer a glimpse into the true scale of our world.

Defense of Earth Measurement

Contemporaries of Eratosthenes

Other Astronomys born within 50 years of Eratosthenes (-276–-195).