If nature is your teacher, your soul will awaken.
Johann Wolfgang von Goethe
If man thinks about his physical or moral state he usually discovers that he is ill.
If I'm to listen to someone else's opinion, it must be put in a positive way; I have enough problematic speculations in my own head.
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.