The best Quotations

Faith keeps many doubts in her pay. if i could not doubt, i should not believe.
- Henry David Thoreau

Do you know the writers of the following quotations?

Quotation Most of us know perfectly well what we ought to do; our trouble is that we do not want to do it. - writer
Quotation Gray hairs seem to my fancy like the soft light of the moon, silvering over the evening of life. - writer
Quotation Competence, like truth, beauty and contact lenses, is in the eye of the beholder. - writer
Quotation Only strength can cooperate. Weakness can only beg. - writer
Quotation The historian's job is to aggrandize, promoting accident to inevitability and innocuous circumstance to portent. - writer
Quotation Treating your adversary with respect is giving him an advantage to which he is not entitled. - writer