Quote by Jean d'Alembert
"The mind that is too rigid to change is already dead."
"The mind that is too rigid to change is already dead."
"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."