The best Quotations

Man values life as a sacred jewel in such a way that he reveres him most who haughtily scorns it.
- Platen

Do you know the writers of the following quotations?

Quotation One must verify or expel his doubts, and convert them into the certainty of Yes or NO. - writer
Quotation Feel the fear and do it anyway. - writer
Quotation Virtue by premeditation isn't worth much. - writer
Quotation Surely a long life must be somewhat tedious, since we are forced to call in so many trifling things to help rid us of our time, which will never return. - writer
Quotation Mistakes are painful when they happen, but years later a collection of mistakes is what is called experience. - writer
Quotation Books are good enough in their own way, but they are a mighty bloodless substitute for life. - writer