Quote by Jean d'Alembert
"A society is measured not by its achievements, but by how it treats the weakest."
More from Jean d'Alembert
"Doubt is an uncomfortable condition, but certainty is a ridiculous one."
"The greatest mathematicians, like the greatest poets, are men of imagination."
"I believe in God, but I do not believe that God has any of the properties which theologians ascribe to him."
"The true method of knowledge is experiment."