The best Quotations

In delay there lies no plenty.
- William Shakespeare

Do you know the writers of the following quotations?

Quotation A satisfied customer! We should have him stuffed! - writer
Quotation He has the common feeling of his profession. He enjoys a statement twice as much if it appears in fine print, and anything that turns up in a footnote... takes on the character of divine revelation. - writer
Quotation Persecution is a tribute the great must always pay for preeminence. - writer
Quotation To get away from one's working environment is, in a sense, to get away from one's self; and this is often the chief advantage of travel and change. - writer
Quotation Art, the one achievement of Man which has made the long trip up from all fours seem well advised. - writer
Quotation All that is valuable in human society depends upon the opportunity for development accorded the individual. - writer