There is no bore we dread being left alone with so much as our own minds. – James Russell Lowell

We often forgive those who bore us, but never those whom we bore. – Francois, Duc de La Rochefoucauld, Maxims

Bore: A man who deprives you of solitude without providing you with company. – Gian Vincenzo Gravina

A bore is a man who, when you ask him how he is, tells you. – Bert Leston Taylor, The So-Called Human Race