Quote by Pierre-Simon Laplace

"I had no need of that hypothesis."

"The weight of evidence for an extraordinary claim must be proportioned to its strangeness."

"What we know is not much. What we do not know is immense."

"If we ought to have a fear of anything, we ought to have a fear of want of knowledge rather than of scepticism."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"