There are three principal means of acquiring knowledge… observation of nature, reflection, and experimentation. Observation collects facts reflection combines them experimentation verifies the result of that combination. – Denis Diderot
The arbitrary rule of a just and enlightened prince is always bad. His virtues are the most dangerous and the surest form of seduction: they lull a people imperceptibly into the habit of loving, respecting, and serving his successor, whoever that successor may be, no matter how wicked or stupid. – Denis Diderot