“Mutual ignorance breeds mutual distrust.”

“Ignorance is a tough evil to conquer.”

“There is no sin but ignorance.”

“Of all the frictional resistances, the one that most retards human movement is ignorance.”

“Reality cannot be ignored except at a price; and the longer the ignorance is persisted in, the higher and more terrible becomes the price that must be paid.”

“The older I get the less I listen to what people say and the more I look at what they do.”

“Anything in life worth having is worth working for.”