If I love you, what business is it of yours?
Johann Wolfgang von Goethe
A person who does not know the history of the last 3,000 years wanders in the darkness of ignorance, unable to make sense of the reality around him.
A rainbow which lasts for a quarter of an hour is looked at no longer.
A person hears only what they understand.
If man thinks about his physical or moral state he usually discovers that he is ill.