The test of interesting people is that subject matter doesn't matter.

The fascinating necessarily tends to call a certain attention to itself; the interesting need not. An evening spent with a fascinating person leaves vivid memories; one spent with interesting people has merely a sort of bouquet.

If men would avoid that general language and general manner in which they strive to hide all that is peculiar, and would say only what was uppermost in their own minds, after their own individual manner, every man would be interesting.

A man who can be entertaining for a full day will be in his grave by night-fall.