The best Quotations

Do you know the writers of the following quotations?

Quotation A true friend is one who overlooks your failures and tolerates your successes. - writer
Quotation The best argument I know for an immortal life is the existence of a man who deserves one. - writer
Quotation The media transforms the great silence of things into its opposite. Formerly constituting a secret, the real now talks constantly. News reports, information, statistics, and surveys are everywhere. - writer
Quotation Money couldn't buy friends, but you get a better class of enemy. - writer
Quotation I have an existential map; it has you are here written all over it. - writer
Quotation God does not play dice with the universe. - writer