The original meaning of this sentence is to talk about the principle of leverage. As long as you have the right tools and a suitable fulcrum. Using the principle of leverage, you can easily move the earth (an object with the same mass as the earth). This sentence was said by Archimedes.

Leverage principle: A system that satisfies the following three points is basically a lever: fulcrum, force application point, and force receiving point. The lever principle is also called the "lever balance condition": for a lever to be balanced, the two torques acting on the lever must be equal. That is: power × power arm = resistance × resistance arm, which can be expressed as:

(F1 represents power, l1 represents power arm, F2 represents resistance, l2 represents resistance arm)

Extended information:

Archimedes (287 BC - 212 BC), a great ancient Greek philosopher, encyclopedic scientist, mathematician, physicist, mechanics, static mechanics And the founder of fluid statics, and enjoys the reputation of "Father of Mechanics", Archimedes is ranked as the world's three major mathematicians along with Gauss and Newton. Archimedes once said: "Give me a fulcrum and I can lift the entire earth."

Archimedes also proposed the lever principle in his book "On the Balance of Plane Figures" . He first regarded some empirical knowledge in the practical application of levers as "self-evident axioms", and then based on these axioms, using geometry through rigorous logical argumentation, he derived the lever principle.

Reference: Baidu Encyclopedia-Archimedes