Quote by Galileo Galilei
"We have seen Venus to be very like the moon, and the moon very like Venus, both having illuminated parts on the side toward the sun."
More from Galileo Galilei
"In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual."
"All truths are easy to understand once they are discovered; the point is to discover them."
"We cannot teach people anything; we can only help them discover it within themselves."
"Mathematics is the language in which God has written the universe."