Quote by Christiaan Huygens
"The cost of knowledge is eternal vigilance against the comfort of ignorance."
"The cost of knowledge is eternal vigilance against the comfort of ignorance."
"The Universe is a great and noble course of things."
"Probability is the very guide of life."
"I have discovered that all human evil comes from this, man's being unable to sit alone in a quiet room."
"The telescope, by which things remote are brought near, shows us the Moon and planets in their true nature."