The best Quotations

Do you know the writers of the following quotations?

Quotation A man who won't die for something is not fit to live. - writer
Quotation Belief consists in accepting the affirmations of the soul; unbelief, in denying them. - writer
Quotation I don't like jokes in speeches. I do like wit and humor. A joke is to humor what pornography is to erotic language in a good novel. - writer
Quotation The sword is the axis of the world, and grandeur is indivisible. - writer
Quotation Melancholy, indeed, should be diverted by every means but drinking. - writer
Quotation Poetry is what Milton saw when he went blind. - writer