Quote by Émilie du Châtelet
"Happiness is found in the exercise of one's faculties, not in their idleness."
More from Émilie du Châtelet
"I love to study mathematics, but I also love the society of my friends and family."
"Life is too short to waste time on things that don't matter."
"The true physics is that which will, when grasped by the method of mathematics, describe the simple aspects of nature so that the law is of universal application."
"I am not at all in humor for talking; I find conversation to be tiring when I wish to think."