In order to shake a hypothesis, it is sometimes not necessary to do anything more than push it as far as it will go. – 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
The most dangerous madmen are those created by religion, and people whose aim is to disrupt society always know how to make good use of them on occasion. – Denis Diderot
Power acquired by violence is only a usurpation, and lasts only as long as the force of him who commands prevails over that of those who obey. – Denis Diderot
The world can doubtless never be well known by theory: practice is absolutely necessary; but surely it is of great use to a young man, before he sets out for that country, full of mazes, windings, and turnings, to have at least a general map of it, made by some experienced traveler. – Lord Chesterfield