The best mannered people make ...

The best mannered people make the most absurd lovers.
 Denis Diderot

Quotes from the same author

Posterity for the philosopher is what the other world is for the religious man.
 Denis Diderot
If your little savage were left to himself and be allowed to retain all his ignorance, he would in time join the infant's reasoning to the grown man's passion, he would strangle his father and sleep with his mother.
 Denis Diderot
The enjoyment of freedom which could be exercised without any motivation would be the real hallmark of a maniac.
 Denis Diderot
In order to get as much fame as one's father one has to much more able than he.
 Denis Diderot
All abstract sciences are nothing but the study of relations between signs.
 Denis Diderot