The best Quotations

Do you know the writers of the following quotations?

Quotation It is better to travel hopefully than to arrive. - writer
Quotation Never hire someone who knows less than you do about what he's hired to do. - writer
Quotation True enjoyment comes from activity of the mind and exercise of the body; the two are ever united. - writer
Quotation Commend a fool for his wit, or a rogue for his honesty and he will receive you into his favor. - writer
Quotation Hard work never killed anybody, but why take a chance? - writer
Quotation To do nothing is also a good remedy. - writer