The best Quotations

Every luxury must be paid for, and everything is a luxury, starting with being in the world.
- Cesare Pavese

Do you know the writers of the following quotations?

Quotation The richest love is that which submits to the arbitration of time. - writer
Quotation Turns them to shapes, and gives to airy noting." - writer
Quotation I wonder, among all the tangles of this mortal coil, which one contains tighter knots to undo, and consequently suggests more tugging, and pain, and diversified elements of misery, than the marriage tie. - writer
Quotation A letter is an unannounced visit, the postman the agent of rude surprises. - writer
Quotation If I am what I have and if I lose what I have who then am I? - writer
Quotation A human being is a single being. Unique and unrepeatable. - writer