Marcus Tullius Cicero Quotes - Page 3
A nation can survive its fools, and even the ambitious. But it cannot survive treason from within.
Speaking to the Roman Senate, as recorded by Sallust in The Catiline War (c. 40 b.c.). This quotation is a favorite of CIA counterintelligence officers.
Diseases of the soul are more dangerous and more numerous than those of the body.
Tusculanarum Disputationum Bk III, Ch. 3
"De Legibus (On the Laws)" book by Marcus Tullius Cicero (Book III, section 3),
"De Senectute (On Old Age)". Book by Marcus Tullius Cicero (Book 5, Section 15), 44 BC.