Jean le Rond d'Alembert quotes

Jean le Rond d'Alembert was a French mathematician, mechanician, physicist, philosopher, and one of the leading figures of the Enlightenment. A co-editor of the Encyclopédie, d'Alembert made significant contributions to mathematics and physics, especially in the field of differential equations and mechanics. He is remembered as a brilliant intellect who greatly advanced the spread of scientific and philosophical knowledge. Here are 2 of his quotes:

Nothing is more incontestable than the existence of our sensations; ...

Jean le Rond d'Alembert