“Betrayal can only happen if you love.” — David Cornwall, a.k.a. John Le Carre, 20th-century British author (from “The Perfect Spy”)

“It is more shameful to distrust one’s friends than to be deceived by them.” — François duc de la Rochefoucauld, 17th-century French memoirist and philosopher

“Most of our faults are more pardonable than the means we use to conceal them.” — François duc de la Rochefoucauld, 17th-century French memoirist and philosopher

“Nature never deceives us; it is always we who deceive ourselves.” — Jean-Jacques Rousseau, 18th-century French philosopher

“More dangers have deceived men than forced them.” — Francis Bacon, 16th-century English philosopher and essayist

“Every journalist who is not too stupid or too full of himself to notice what is going on knows that what he does is morally indefensible. He is a kind of confidence man, preying on people’s vanity, ignorance or loneliness, gaining their trust and betraying them without remorse.” — Janet Malcolm, 20th-century American journalist and author (The Journalist and the Murderer)

“How many times do you get to lie before you are a liar?” — Michael Josephson, 20th/21st- century American ethicist