Who said "Observation is the first step to knowledge."?

This quote is attributed to Anaxagoras.

Observation is the first step to knowledge. - Anaxagoras

"Observation is the first step to knowledge."

Anaxagoras Knowledge

Philosopher Ancient Greece 500–428

"Appearances are a glimpse of the unseen."

"Mind is the finest thing that exists."

"Everything has a natural explanation."

"The greatest things are the smallest."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."