The best Quotations

We are all apprentices in a craft where no one ever becomes a master.
- Ernest Hemingway

Do you know the writers of the following quotations?

Quotation Gratitude is a duty which ought to be paid, but which none have a right to expect. - writer
Quotation Civilization is a movement and not a condition, a voyage and not a harbor. - writer
Quotation It is the neglect of timely repair that makes rebuilding necessary. - writer
Quotation He who can, does. He who cannot, teaches. - writer
Quotation Eaten bread is soon forgotten. - writer
Quotation Truth is one, but error proliferates. Man tracks it down and cuts it up into little pieces hoping to turn it into grains of truth. But the ultimate atom will always essentially be an error, a miscalculation. - writer