Често човек е най-злият враг на самия себе си

“Diseases of the soul are more dangerous and more numerous than those of the bod…”

“Ein Zimmer ohne Bücher ist wie ein Körper ohne Seele.”

“La conducta privada de un hombre no puede ser separada de su conducta pública; …”

“The man who backbites an absent friend, nay, who does not stand up for him when…”