Parents take heed of the first quote! :-)

"Like its politicians and its wars, society has the teenagers it deserves."
-- J. B. Priestley

"Reading made Don Quixote a gentleman. Believing what he read made him mad."
-- George Bernard Shaw

"It is by universal misunderstanding that all agree. For if, by ill luck, people understood each other, they would never agree."
-- Charles Baudelaire