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."

"Common sense is not so common."

"Let us gather our instruments and our talents, and employ them in the service of truth."

"The mind creates a narrative to make sense of the chaos of life."

"One cannot know too much of one's native language."

"I think, therefore I am enlightened."

"The prejudices of philosophers are as difficult to eradicate as those of the common people."

"We must learn to see clearly before we can judge wisely."

"All truths are easy to understand once they are discovered."

"The scientist who does not know the history of his science is not worthy of the name."

"To achieve great things, we must learn to think beyond the conventional."

"Music is the passion of my life, but mathematics is its architecture."

"Prejudice is always ready to offer a very favorable interpretation of itself."

"The beauty of science lies in its pursuit of truth without dogma."

"One must be very learned to think one knows nothing."

"The Encyclopedia was not created for philosophers alone."

"Reason is but a portion of the vast spiritual intellect."

"War is a plague that society must learn to overcome."

"The study of nature is the path to enlightenment."

"True freedom comes from understanding necessity."

"Art and science are the greatest achievements of human civilization."

"The universe operates according to mathematical principles."

"Happiness is found not in the pursuit of pleasure, but in meaningful work."

"We are all slaves to some passion or principle."

"The greatest discovery is that knowledge itself is infinite."

"To understand history is to understand ourselves."

"Courage is the virtue that makes all other virtues possible."