Quotes by Denis Diderot

Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined and for this reason, creative geniuses are not common.

No man has received from nature the right to command his fellow human beings.

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.

Good music is very close to primitive language.

The best doctor is the one you run to and can’t find.

The possibility of divorce renders both marriage partners stricter in their observance of the duties they owe to each other. Divorces help to improve morals and to increase the population.

There is only one passion, the passion for happiness.

The philosopher has never killed any priests, whereas the priest has killed a great many philosophers.

Only passions, great passions can elevate the soul to great things.

Morals are in all countries the result of legislation and government they are not African or Asian or European: they are good or bad.