Quote by Henrietta Leavitt
"The variables taught me that constancy in effort produces constants in result."
More from Henrietta Leavitt
"I have observed a relation between the colors of the stars and their luminosity."
"The study of variable stars has opened a new window to understanding the universe."
"One cannot work in astronomy without patience and meticulous attention to detail."
"The stars reveal their secrets to those who observe them carefully."