The best Quotations

People generally quarrel because they cannot argue.
- Gilbert K. Chesterton

Do you know the writers of the following quotations?

Quotation Deliberate with caution, but act with decision; and yield with graciousness or oppose with firmness. - writer
Quotation The Goddamn human race deserves itself, and as far as I'm concerned it can have it. - writer
Quotation A perpetual holiday is a good working definition of hell. - writer
Quotation Youth is about the only thing worth having, and that is about the only thing youth has. - writer
Quotation A warm smile is the universal language of kindness. - writer
Quotation When a man says money can do anything, that settles it. He hasn't any. - writer