Who said "What we know is a drop; what we don't know is an ocean."?

This quote is attributed to Isaac Newton.

What we know is a drop; what we don't know is an ocean. - Isaac Newton

"What we know is a drop; what we don't know is an ocean."

Isaac Newton

Mathematician and Physicist English 1643–1727

"If I have seen further, it is by standing on the shoulders of giants."

"The greatest force in the universe is not gravity, but human potential."

"I can calculate the motion of heavenly bodies, but not the madness of people."

"Nature and nature's laws lay hid in night; God said, Let Newton be! and all was light."