Every man should examine his own genius,and advise with himself what is proper to apply himself to; for nothing can be more distant from tranquillity and happiness than to be engaged in a course of life for which nature has rendered thee unfit; for an active life is not to be undertaken by an unactive person; nor an unactive life by an active person: to one,rest is quiet and action labour; to another,rest is labour and action quiet: a mild and timorous man should avoid a military life,a bold and impatient man the easy; for one cannot brook war,nor the other peace.