It means: we are never satisfied with what we have; we always want more.
This quote suggests that people often imagine a better world than the one they currently live in. It highlights the innate desire for improvement and a belief in a more idealistic future.
people always dream of something different, and (they think) better than what they know
It was a quote said by Carleton Noyes "Poetry: General Introduction" from Lectures on the Harvard Classics, 1914
if you are asking what it means it can be interpreted as how humans always want more no matter what and can not settle for what is given to them in this case humans are seeking a better life then he one that has been "given" to them or in simpler terms the life that they have
yes because it is a human heart
The cow heart is bigger than the human heart.
the artificial heart is used to save human life when a human's heart fails.
God created the human heart. He is amazing!
Nope. The human heart is a muscle not an organ.
It has 4 chambers in the human heart
A frog's heart has only three chambers, and a human's heart has four chambers.
Any Human Heart was created in 2002.
Map of the Human Heart was created in 1993.
The human heart is in the chest cavity.